Making Interactions Accessible to All Users


Are your websites accessible to all users? Are all the users able to interact with your application as intended regardless of their disabilities? Accessibility often remains an afterthought even today, and I am here to share how we can change that. In this talk, we will explore best practices for designing and building user interactions for websites that are accessible and user-friendly for our users. Using semantic HTML and ARIA attributes, we will cover strategies for interaction from a simple button, to navigation, to different form elements and custom components.

30 min
02 Jun, 2023


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AI Generated Video Summary

Today's Talk explores making web interactions accessible to all users. It emphasizes the importance of accessibility and the various ways users interact with the web. The Talk covers common accessibility issues with buttons, links, forms, and dynamic information. It also discusses the use of ARIA labels, error handling, and models. The importance of convincing upper management for accessibility and the limitations of automated testing are highlighted. The Talk concludes with recommendations for screen readers and considerations for icon buttons.

1. Introduction to Web Interaction

Short description:

Today's topic is making interactions accessible to all users. We'll start with quick introductions and then explore how users interact with the web and how to make it accessible. I'm a frontend consultant and a Google Developers Expert. Let's define interaction as contact between the user and the interface. Examples of web interaction include clicking, hovering, scrolling, and typing.

Thanks, Metin. It's actually my honor as well to be introduced by Metin. He's like my favorite MC, so, yeah.

And hi, everyone. I hope you are all enjoying the conference today. First of all, I would like to ask you, again, to give a big round of applause to all the organizers as well as all the volunteers. They have been doing a great job in organizing this. So give it up. Awesome.

So my topic for today is making interactions accessible to all the users. Okay. Good. So the agenda is we will start with some quick introductions. Then we will see a bit how users interact with the web and how can we make it accessible, right?

So before we start, a bit of introduction about myself. I'm working as a frontend consultant here in Amsterdam. I'm a Google Developers Expert for web. Microsoft MVP. Women Techmakers Ambassador and Cloudinary Ambassador. So you can connect with me on LinkedIn or Twitter at anrada15 or on Twitter at Miracle Underscore 404. So let's get started.

What exactly is interaction? So in simple terms, it just means some contact has happened between the user and the interface. So user could have done some action and there is some response from the interface and it is called an interaction.

So how do we all interact with the web? Can I get some examples? What do we do to interact with the web? You open a website. What do we do? Click. Yes. Hover. Scroll. Tab. Tab key, yes. Awesome! So yeah, we also type on it when we see an input box or something.

2. Understanding Web Interaction and Accessibility

Short description:

We interact with the web in various ways, such as filling information, hovering, scrolling, and using tabs. Accessibility is crucial because we build for diverse users with different disabilities who interact with the web using various assistive technologies. We can access the web using a mouse, keyboard, screen readers, braille readers, and more. It's important to be mindful of the different ways users navigate and interact with the web.

We have to fill the information. We hover. We scroll. We tab of course. So these are the ways in which we interact. We will see more just in a while.

But before that, what is accessibility? Accessibility means making resources and services usable by everyone regardless of their disabilities. Now, why should we care about accessibility? Because whatever we build, we build it for our users. So users should be able to use it, right? We have pretty diverse users. They can have different kinds of disabilities. And since they have different types of disabilities, they also interact with the web in different ways. Different kinds of technologies and devices. And they are called assistive technologies.

So there are multiple ways in which we can be accessing the web. We can be using the normal mouse, we can be using keyboard, screen readers, braille readers, a braille display switch, and so on. There are lots more. So now let's revisit. Yes, we interact with web in these ways. But we also can use tab. We can use enter if we want to go there. If we cannot click. If we cannot use a mouse. So maybe we are just reliant on keyboard. So we will go and press enter on it. Spacebar, we can use tab, scape to move away from a model, we can use arrow keys to navigate. So there are lots of ways in which we can navigate. And this is something which we need to be mindful of. So I will be showing some examples now. And the link is on Code Sandbox and I will be sharing the slides in the end. So don't worry about that.

3. Inaccessible Behavior with Buttons

Short description:

In this scenario, we encounter an inaccessible behavior with buttons. When using a keyboard, there is no visual interaction to indicate the current focus. This common issue is caused by a simple style in the code. By checking our codebases, we may find this problematic line.

And examples are fairly simple, not that complex. The format is I will just show an inaccessible scenario. Then we will see how can we fix it. And what should be the accessible behavior.

So the first scenario is button. Very simple, right? But buttons are everywhere. Buttons and links. We cannot do anything about that. Anywhere you want to go, you will use buttons, you will use links to navigate and so on. So let's see. Again.

So here is a button, maybe sign up, log in. I click on it, something happens. Here just a message happens and so on. So I can do fairly well when I'm using mouse. But let's start using a keyboard. Is the font size okay? So I start using tab. So I press tab. Can you tell me where I am currently, if I'm pressing the tab? Press tab again. We don't know, right? So there is no visual interaction. So if I want to know, if I'm just using a keyboard and I want to go to login, like, press enter, just on my wish or just count, and then, okay, these many tabs I have pressed. So maybe I'm on the right button and so on. No. But sadly, this is a very common behavior, which we see across all the websites.

So the culprit is just a very simple style. So when we go and focus on something, I know I should be focusing on a button. So let's go to a button and let's say focus. And we see there is a style. This one line of code is a culprit. And if you go ahead and check in your codebases, maybe in many codebases we search and we will find this, it's a sin.

4. Inaccessible Behavior with Buttons

Short description:

When using buttons, the default browser outline provides feedback on the current focus. However, designers often find these outlines ugly and prefer to style them to match the design system. When using non-semantic HTML, such as SVG or icons, with onClick events, they are not accessible to keyboard users. Instead, we should use a button element. In rare cases where a non-native element is needed, extra code, such as tab index and role, should be added for keyboard accessibility.

It should be considered a sin. But anyways, if I remove this, now again if I tab, maybe can't see it properly, but there's a blue outline on it. So there is a browser default outline which goes on the button. But still it gives you a feedback that, OK, where I am currently, right, or everywhere.

Now designers most of the times are like, oh, these are ugly. So outlines are ugly is a very common notion in our web development. But we can change it. It doesn't have to be browser behavior. We can use some styling relating to our theme, our design system, and we can make it a bit better. So for example, I can just, instead of saying outline none, I can do something. I can add some offset, some color, and then suddenly it will be a bit better and it corresponds to the color scheme I have.

So second thing, when we have buttons like these, which just have an icon, we don't have any text. We have an icon and we want to do some interactions. Now again, I can see it. I can click on it. OK, it works. I know that. OK, maybe I'm favoring something. But many times we use non-semantic HTML for it. Maybe we have an SVG or an image or an icon and we go ahead and put an onClick on it. When we do that, these things are not accessible to the keyboard users. Because, since they are non-semantic, they do not get keyboard accessibility out of the box. So what should we be using instead? We should be using a button. That we will see in a while. But I would like to tell one thing here, that there are some times where we are creating something which is non-native, maybe HTML doesn't have a native element for it. Very rare scenario but can happen. In those cases we need to add some extra code to make it interactive. Like tab index, we put it a proper role. And in just, in addition to adding just onClick, we also need to add key down on it. So that the users who are using keyboard, they can also perform the action.

5. Accessible Button Behavior

Short description:

If we have a native HTML element like a button, it's best to use semantic HTML. However, when using an icon-only button, screen reader users may not know its purpose. To address this, we can provide text using ARIA labels or create a visually hidden component with a name. Additionally, for toggle buttons, we can use aria-pressed to indicate the current state.

But don't do it just for a button or something. If we have a native HTML element, let's go ahead and use the semantic HTML. So we will be using the button. So once we use a button, it still works like that, right? So here also it's a button. And I did not remove it. So anyways, yeah.

So here I can press and I can press and it works. Now there are two more problems with this. Since this is just icon only, how does a screen reader user know that what this button is? They do not know the name of it. So we can provide some text for it. We can use ARIA labels for that. But then ARIA labels are also found that sometimes they have problems when we are using internationalization and stuff like that. So instead what we can do is we can create a visually hidden component, and we can have a styling on it. This is styling. What does it do is it just takes the text out of the viewport. So you wouldn't see it visually, but it is there in the DOM. So when the screenreader is used, then this text is pronounced. So I can say that, okay, put a visually hidden text here and give the name. So this is name is favorite.

The other thing is this has also kind of a state. It has two states. Either I have pressed it or I have not pressed it. So either it's a favorite or it's not a favorite. But again, a screenreader user would just hear maybe button favorite. How would they know if it's favorite or not? So if we have such kind of toggle behavior, we can use something called aria-pressed. And once we do it, what it does, when I go ahead and use the screenreader here... VoiceOver on Chrome, favorite, toggle button name, DevTool, selected. So once I select it, it says selected. And somehow when I open the VoiceOver, styling doesn't apply. But if I close, you will see that it's already selected.

6. Interaction with Links and Forms

Short description:

It's important to provide alt text for images used as links. Anchor tags have specific behavior that buttons do not, such as displaying the URL on hover and providing extra options on right-click. When deciding between a button and a link, consider the actions you want the user to take. Forms are an essential component of the web and should be accessible. One common error is missing or improper input labels.

Yeah. So it says that it's selected when you have selected that and you wanted to intend it to be selected. So next up is link. For the link, similar things happen. If we are using an image or something, we should be providing some alt text or some text for it. So the screenreader users also understand what that link does.

Apart from that, one important thing that I want to talk about is that sometimes in design systems, we are like, okay, this link looks like a button. And then we go out and implement using a button element. And we say window.location or use a hook like use navigate or something like that. What this does that okay, this will again still navigate you to that URL. But what we don't understand is that anchor tags have a purpose. They navigate us to somewhere. So they also have some behavior which we are used to. Like, for example, if I hover over a link, we get the URL down. We know that what is a real URL, even though whatever the text is. Also, when I right click on it, I get some extra behavior. Like I can open it in new tab and stuff like that or I can use control click and it opens. But if we use a button and use it as a link, then those capabilities are not there. So we take away these extra interaction capabilities from the user. So we should be always mindful of which element we are using. So again, there are more nuances to when should be using button and when should be using link. But one of the main thing is if we have some actions to do, a button should be there. And if we have to navigate somewhere, like we take user from somewhere, from other part of the page or to a different URL or so, then a link should be more proper there.

The next scenario is forms. Forms, again, are very important component of our web. Like everywhere, if you have to do a transaction, if you have to fill some form, you have to log in, you have to sign up, do whatever you have to fill in some information in forms. So forms is something that we interact with almost daily. Then they should be accessible. One very common error, if we go ahead and check webm-1million report, what it does is that it audits the top 1 million websites of the world for their homepages, and it lists out the errors. So this is one of the most common errors where the input labels do not have proper labels.

7. Accessible Labels and Extra Information

Short description:

Either labels are missing or not connected properly. Use proper labels with 'for' attribute. Provide extra information using aria-described-by. Screen readers read the label and input. Extra information can be missed. Add aria-described-by to connect input with extra information. Demo in Safari shows screen reader reading validation information for each input field.

Either the labels are missing or maybe they have not been connected properly, and hence missing. So again, there's almost half of the webpages are with this error. So we need to do a lot here as well. So here, instead of just using a span or div for labeling, or skipping it altogether, we should be using proper labels. So we use a label, and we put for, or if we are using React, HTML for, and we give the ID of the element. And hence, the label gets connected. Somehow, so this is one very important thing which we need to do.

Other thing is let's say this is a form, and we have labeled it properly. Now what will it read? First name, text, last name, text, password, password field, and so on. Sometimes we have some extra information, some validation information for some of these input fields. Like for password, it could be very complicated. And you put out a long hint that, okay, minimum characters, they should have underscore and blah, and blah, like lots of stuff. Now when we are using a screen reader, again, it just reads out the label and the input. Like what you should be feeling. But this hint wouldn't by default be read out to our screen reader users. So they would miss on some important information that we have. For that, what we can do is we can add aria-described-by, and we say that this input is described by this SPAN or DIV, which contains that extra information.

Now demo gods were angry for me today. So in Chrome, all of my accessibility things have stopped working, but still it is working in Safari. So I'm going to show you the screen reader example in Safari. VoiceOver on Safari. First name. Last email. Password. Password. Required secure edit text with autofill menu. Minimum eight characters. So it will read out all the validation information that we have so the user knows exactly that, okay, this much I need to fill in. All these other things I need to follow if I want to pass through that. Now, the next thing is dynamic information.

8. Dynamic Information and Error Handling

Short description:

So when displaying dynamic information or alerts to users, it's important to consider accessibility for screen reader users. By using ARIA live regions, we can ensure that the information is announced to screen reader users. Additionally, when displaying errors in forms, relying solely on color can be problematic for users with color blindness. It's crucial to provide alternative visual cues or additional text to indicate errors.

So this also can be part of form. But I put it out as separate because we can have dynamic information, some alerts, messages and all, apart from forms as well. So sometimes we can have some important information which we want to tell our user. Example here, let's say, some error comes back. So if we can see error or message anything, if we can see, we know that, okay, this is the message. I know what to do next. But again, the user who is using screen reader, does they get this information? How will they get this information? For that, we need to have something called live reasons. So those reasons, one rule is that when the DOM is painted, that that should be already there. Like so do not create the element when the message comes. The element should already be there. And what we do is when the message comes, we put that message inside that live reason. So for example, here, what we can do is that this is a div where I am putting in my validation messages. So I can say that ARIA life polite and the role of status. So there are different values of it. There is also assertive and all. But I'm using polite because this means that, OK, this message is not that urgent. So what you do is that if the screen reader is already reading something, let them finish and then announce this message. So how this works now is again, I wanted to be doing something wrong. Register button, error submitting form. So it goes ahead and gets the message so the user knows there's something wrong. There are more layers to it, but due to time I wouldn't go and check everything. But one more important thing I want to say here is this is something of which some message comes from server or so and we show it to the user. Now there's one more very important pattern that we are following web. What we do is that when anything goes wrong in form, we just show it in red. We use a color, we make it red, and this is the error. Now there are different kinds of disabilities. There is one more condition called color blindness and there are different kinds of color blindness. One is called achromatopsia. So there could be a user who could be just showing in black and white and gray. And if you use just color to show some information, again, the user will not be able to understand, if they don't know where the error is, how will they go ahead and fix it? They will face the problem.

9. Models and Authoring Practices Guideline

Short description:

So we shouldn't just use the color, we should be using specific errors and showing them that, okay, this is the field where the error is and what is the error and so on. The last scenario is models. About dialogs and popovers, there is a guideline by W3C called authoring practices guideline by area. It provides a list of keyboard interactions and intended behaviors for different components. HTML now has a native dialogue element that can be used, but it lacks focus trapping. To address this, we can use JavaScript code to handle focus and ensure a better user experience.

So we shouldn't just use the color, we should be using specific errors and showing them that, okay, this is the field where the error is and what is the error and so on. Okay.

So the last scenario is models. So about dialogs and popovers, I think Hiday yesterday did a very nice talk about that. So I wouldn't go into that but I want to show something about the models. Because this is one of the complex component out there, so we have something called, here I would like to talk about something called authoring practices guideline by area, it's by W3C.

So this is something which I really like because whenever we are creating something if we are confused what should be the interaction, like what should be the different flow, right? So what we can do is we can go ahead and go to patterns and search for the pattern we are trying. Like for example, here a dialogue, we can go and see that what are the intended interaction that user can perform? So these are the things we need to take care of when we are thinking about accessibility. So for example, it will give a list of all the keyboard interaction and what should happen like when the dialogue opens the focus should go to the automatically first focusable element inside and what tab should do, shift tab should do and all. Escape should close the dialogue and so on. So it's a pretty nice thing to go and read, but on the note of that, previously we had to write it all from scratch.

We had to write JavaScript code to create this dialogue element, but now HTML also has a dialogue element, a native element attached, which is pretty cool. So we can use that. And it does almost all of the things. For example, I press enter, the focus is inside, we are inside. I press escape, it closes, focus moves back to the place from where it was taken away. But one thing still is that the focus trap is not inside this dialogue still. So when I press tab again, I still move to different parts. So there is no focus trap. So what this does is that this could be a problem if we have a model which we don't have anything besides it. And if the focus goes behind the screen, that's not a good user experience. So instead what it should happen is I press tab and the focus should be inside the model. Because this is the only place where a user can interact right now if it's open. So for that still we can use some JavaScript code to make it better. What we can do is we can use a key down event handler, and there we can have some logic for... What we can do is that we can have focusable elements from the model. We can say that, hey, give me all the focusable elements of the model, which is basically just query selected into the model ref and get button anchor inputs, whatever interactive elements we have inside it. And we focus on the first and last active element, and then we can put the logic that what it does when it has tab and shift key, and when we are on the last... When we... Yeah.

10. Web Interaction Logic

Short description:

When tabbing, the focus should cycle between interactive elements. Component libraries like React ARIA provide useful hooks and the use dialog function. When creating web content, test for different user interactions, use semantic HTML, provide text descriptions for graphical elements, announce dynamic elements, and always prioritize accessibility. Thank you for advocating accessibility, Anuradha!

So, this is the logic. When we press this and we are tabbing, when we are on the last element, when we tab again, it goes to first interactive element, and when we shift tab, it goes to last interactive element.

Now, again, I'm almost out of time, but... Yeah. So, this is not something, again, which we need to reinvent. We could have different component libraries in frameworks which we can use. For React, there is something, React ARIA, which provides lots of hooks, and they are pretty good. Even the use dialog is pretty good. So, go ahead and check this out.

So, to summarize, whenever we're creating something, we should be testing for all different ways the users interact with web. We should never remove the outline on focus. Use semantic HTML whenever possible. There should always be a text description for graphical interactive elements. Dynamic elements, messages should be announced. And always think from accessibility perspective. I have some links for further read. You can scan the QR code or go to forward slash A11y-interactions. Thank you. Thank you for advocating accessibility. It's an important topic and, yeah, there's a lot of things that people do and, yeah, people don't think about it enough. So thanks a lot, Anuradha, for sharing.

11. Convincing Upper Management for Accessibility

Short description:

To convince upper management to allocate time and budget for accessibility, it's important to create a scenario highlighting the critical parts that need improvement. By focusing on the main user interactions and demonstrating the impact on the business, we can show the importance of accessibility. It's also crucial to emphasize that accessibility can be implemented incrementally and that there are laws in place to support accessibility efforts. Ultimately, ensuring that everyone can use the product is essential for successful integration.

One question that is asked by an anonymous visitor, which is asked a lot. How do they convince upper management to get the time and budget? Yeah. That's pretty, I think a very common question as well. And pretty difficult, you know. Like it's very difficult to talk to your upper management. But what I find works is one very important thing is make a scenario for accessibility. Like whatever product we are working on or services we are working on, we find that, okay, this flow is not accessible enough. And it's good to find a critical part. Because this is how we approach. If something is not accessible already, so we can not go ahead and in one day make it all accessible, right? So let's all first figure out the critical part. This is where the user does the most. Like if it's e-commerce, like what does a user do? The add to cart and buy flow is the main part, right? That's all the business is about. So take an accessible part of that, make it accessible, present it to the management and show them that, hey, this is such an important thing to do in our business. Our business depends on this. And if our users are not able to do that, then we are losing users, right? Like users wouldn't be using our websites and applications. So hopefully the management understands. And also we can show that this is not that difficult. We do not need 100 years to do something accessible, right? Like and we can do it in sprints. It doesn't have to be zero to 100 percent. You can go from 5 percent, 10 percent and just do it. Yeah. And if nothing works, then go for the laws. There are laws in all countries for accessibility. Please go and quote the laws. Just get the law involved. Yes. Yeah. And it depends on the company where you are and the budget you have, of course. But for me, like, if it's just part of the requirements, you can't merge anything if not everyone can use it. So that's a good thing.

12. Automated Testing and Accessibility

Short description:

We can use multiple tools for automated testing, such as Lighthouse, AXE DevTools, Microsoft Insights for web, and AXE-Core. However, it's important to note that automated tests may not catch all accessibility issues. Manual testing and user testing are also necessary. While automated tests help tackle low-hanging fruits, they are not sufficient on their own.

And that's a good thing about working in a big company. Yeah. Yeah. I mean, we can definitely use multiple tools for automated testing. Like, some tools are in browsers. You can use Lighthouse. You can use AXE DevTools. Actually, anything related to AXE is pretty good, because even Lighthouse is powered by AXE. Then there are Microsoft Insights for web, which you can install as extension. There's AXE-Core. You can install AXE-Core and actually use it in the CI-CD pipeline. So it tests for it. There are some linters which we can use. But one thing to note is all these automated tests will not like, you know, catch the 100% of accessibility. Like, the examples which I gave, like Outline and Search, these are not something which will get caught in automated tests, maybe. You need to do manual testing as well and also user testing. So, yes, use automated tests and they really help us to tackle all the low-hanging fruits I would say. But we cannot rely just on automated tests to make it more accessible.


Accessibility and Screen Readers

Short description:

Most accessibility issues can be tackled by using the platform and ensuring compliance. Test component libraries, even if they claim to be accessible. Different screen readers are recommended based on the platform and device. VoiceOver is standard for Mac, NVDA and JAWS for Windows, Orca for Linux, and TalkBack for Android. Screen readers have specific combinations with devices and browsers. Border styles provide visual feedback on focus and are generally acceptable.

Yeah, I always feel like most accessibility issues can be tackled just by using the platform, right? Like, not writing your own button, just using a button tag. But if you are using any component library, make sure that it is compliant. Like, it is WCAG compliant, and they say it's like... ...and test it, even if they say it's accessible, do not believe it. Go ahead and test it, please.

Next question from anonymous. Which screen reader would you recommend for development? I saw you using VoiceOver, but for Windows users. It depends on which platform you are using. So, like, the users use different kinds of screen readers based upon which OS they are using or which device they are using. Like, for Mac, VoiceOver is the standard which they use. For Windows, we also have inbuilt VoiceOver kind of thing with Windows, but also we use NVDA. I think NVDA is a free one, then there is JAWS. Linux has something called Orca. Android has TalkBack, like, something like that. So, yeah, every device has one. But screen readers are, like, you need to read a bit before starting using it because users also have a combination. Screen readers are not like you start using in any browser. They have a combination. Like, we are using this device, we are using this screen reader, and then we have this specific browser. They work the best. For example, actually VoiceOver is said to work best with Safari, but, yeah, I do use it with Chrome. Yeah, okay. All right, thanks.

Question from Veronica. Are there some drawbacks to using Border on Focus for styling as opposed to Outline? Okay, so just using the Border styles. If there are any I'm not aware of yet, I will have to search more. But, like, what I feel is that if you are putting it out there, that user can still see it. Like, they get that visual feedback. There should be a visual feedback. If it's there, it is, I think it's okay.

Disadvantages of Border Styling and ARIA Labels

Short description:

The biggest drawback of using Border or changing the Border width is that it can mess up the styling. ARIA labels should be used for forms, even if visually hidden, to ensure they are read out. Labels provide a convenient way to focus on input. Chrome DevTools offers tools for emulating different kinds of blindness and color schemes.

But again, don't take my word for it. I do not know yet if there are any disadvantages. Well, I think the biggest drawback is that if you use Border or you change the Border width, because usually it's bigger. The styling. Yeah, the styling will be messed up because it will get bigger.

Yeah. We have time, yeah. You said ARIA labels should be avoided as internationalization issues. If we translate labels, do you have a preference of a label or hidden screen reader elements? Label or hidden? Hidden screen reader element. So the visually. Ah, the visually. No, I mean, if there's a form, it should be labeled. Even if you are visually hiding it, it should still be labeled. Because if we are just using any other text, so for forms, they wouldn't be read out. If you are navigating through forms, then labels are attached with our form inputs, so they will be done. But there's another way we can use ARIA labeled by like some people use it, but I think just use labels. Yeah. I always like if it's labeled because you can just click the text to focus the input. Exactly. It provides so much. You click on the label and you know that, okay, you are in this input text. It's pretty cool.

This is a good question. There are some ways. Like there are some tools which we can use, but also there is one in Chrome DevTools. In Chrome DevTools, if you do I think command shift P or something and you write emulate, you get different kinds of blindness that you can emulate. You can also emulate different kinds of color schemes. You can go to dark mode, light mode, and you can emulate all these blindness. This is the way if you're using Chrome DevTools, or you can install some extensions. Or there are some event softwares which people use to emulate this.

Using the title attribute for icon buttons

Short description:

When using the title attribute for icon buttons, the title is inherited and read by screen readers. However, it is unclear how title translation works on websites. The title attribute is useful for providing additional information to users who can read and hover over elements. It helps in identifying icons and understanding their purpose.

If you are not using web but using a photo or something. It comes in layered in lots of components. Cool.

Next question, from Metin Parzinski. Who is he? Weird name. I always use the title attributes for icon buttons. Is that also allowed? Actually, title is also inherited. So if you go ahead and see the accessibility tree, you will see that even for interactive elements you are using title. They read that title and they try to use it if it does not provide any text. But I do not know if we use title how it works when we are translating the website. So I don't know about this yet. So what if I'm translating into some different language. I don't know if title gets translated or not. If you're using the Google Translate automation? Yeah. That I don't know, but then you just shouldn't translate. Then we have to test it.

Now but what I like about the title attribute is that also for people that can read, that they can hover over it and you get that text. No, that's definitely good. I actually love it a lot, because you don't know all the icons. You don't know. For me, I'm always lost. What is this? I need to know. And that's definitely something which is useful. All right. And time's up.

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Can useEffect affect your codebase negatively? From fetching data to fighting with imperative APIs, side effects are one of the biggest sources of frustration in web app development. And let’s be honest, putting everything in useEffect hooks doesn’t help much. In this talk, we'll demystify the useEffect hook and get a better understanding of when (and when not) to use it, as well as discover how declarative effects can make effect management more maintainable in even the most complex React apps.
React Advanced Conference 2021React Advanced Conference 2021
47 min
Design Systems: Walking the Line Between Flexibility and Consistency
Design systems aim to bring consistency to a brand's design and make the UI development productive. Component libraries with well-thought API can make this a breeze. But, sometimes an API choice can accidentally overstep and slow the team down! There's a balance there... somewhere. Let's explore some of the problems and possible creative solutions.

React Summit 2023React Summit 2023
24 min
React Concurrency, Explained
React 18! Concurrent features! You might’ve already tried the new APIs like useTransition, or you might’ve just heard of them. But do you know how React 18 achieves the performance wins it brings with itself? In this talk, let’s peek under the hood of React 18’s performance features: - How React 18 lowers the time your page stays frozen (aka TBT) - What exactly happens in the main thread when you run useTransition() - What’s the catch with the improvements (there’s no free cake!), and why Vue.js and Preact straight refused to ship anything similar
React Summit Remote Edition 2020React Summit Remote Edition 2020
32 min
AHA Programming
Are you the kind of programmer who prefers to never see the same code in two places, or do you make liberal use of copy/paste? Many developers swear the Don't Repeat Yourself (DRY) philosophy while others prefer to Write Everything Twice (WET). But which of these produces more maintainable codebases? I've seen both of these approaches lay waste to codebases and I have a new ideology I would like to propose to you: Avoid Hasty Abstractions (AHA). In this keynote, we'll talk about abstraction and how you can improve a codebase applying and creating abstractions more thoughtfully as well as how to get yourself out of a mess of over or under-abstraction.

Workshops on related topic

React Summit Remote Edition 2021React Summit Remote Edition 2021
177 min
React Hooks Tips Only the Pros Know
The addition of the hooks API to React was quite a major change. Before hooks most components had to be class based. Now, with hooks, these are often much simpler functional components. Hooks can be really simple to use. Almost deceptively simple. Because there are still plenty of ways you can mess up with hooks. And it often turns out there are many ways where you can improve your components a better understanding of how each React hook can be used.
You will learn all about the pros and cons of the various hooks. You will learn when to use useState() versus useReducer(). We will look at using useContext() efficiently. You will see when to use useLayoutEffect() and when useEffect() is better.

React Advanced Conference 2021React Advanced Conference 2021
174 min
React, TypeScript, and TDD
Workshop Free
ReactJS is wildly popular and thus wildly supported. TypeScript is increasingly popular, and thus increasingly supported.
The two together? Not as much. Given that they both change quickly, it's hard to find accurate learning materials.
React+TypeScript, with JetBrains IDEs? That three-part combination is the topic of this series. We'll show a little about a lot. Meaning, the key steps to getting productive, in the IDE, for React projects using TypeScript. Along the way we'll show test-driven development and emphasize tips-and-tricks in the IDE.

React Summit 2023React Summit 2023
171 min
React Performance Debugging Masterclass
Workshop Free
Ivan’s first attempts at performance debugging were chaotic. He would see a slow interaction, try a random optimization, see that it didn't help, and keep trying other optimizations until he found the right one (or gave up).
Back then, Ivan didn’t know how to use performance devtools well. He would do a recording in Chrome DevTools or React Profiler, poke around it, try clicking random things, and then close it in frustration a few minutes later. Now, Ivan knows exactly where and what to look for. And in this workshop, Ivan will teach you that too.
Here’s how this is going to work. We’ll take a slow app → debug it (using tools like Chrome DevTools, React Profiler, and why-did-you-render) → pinpoint the bottleneck → and then repeat, several times more. We won’t talk about the solutions (in 90% of the cases, it’s just the ol’ regular useMemo() or memo()). But we’ll talk about everything that comes before – and learn how to analyze any React performance problem, step by step.
(Note: This workshop is best suited for engineers who are already familiar with how useMemo() and memo() work – but want to get better at using the performance tools around React. Also, we’ll be covering interaction performance, not load speed, so you won’t hear a word about Lighthouse 🤐)
React Summit 2023React Summit 2023
152 min
Designing Effective Tests With React Testing Library
React Testing Library is a great framework for React component tests because there are a lot of questions it answers for you, so you don’t need to worry about those questions. But that doesn’t mean testing is easy. There are still a lot of questions you have to figure out for yourself: How many component tests should you write vs end-to-end tests or lower-level unit tests? How can you test a certain line of code that is tricky to test? And what in the world are you supposed to do about that persistent act() warning?
In this three-hour workshop we’ll introduce React Testing Library along with a mental model for how to think about designing your component tests. This mental model will help you see how to test each bit of logic, whether or not to mock dependencies, and will help improve the design of your components. You’ll walk away with the tools, techniques, and principles you need to implement low-cost, high-value component tests.
Table of contents
- The different kinds of React application tests, and where component tests fit in
- A mental model for thinking about the inputs and outputs of the components you test
- Options for selecting DOM elements to verify and interact with them
- The value of mocks and why they shouldn’t be avoided
- The challenges with asynchrony in RTL tests and how to handle them
- Familiarity with building applications with React
- Basic experience writing automated tests with Jest or another unit testing framework
- You do not need any experience with React Testing Library
- Machine setup: Node LTS, Yarn
React Day Berlin 2022React Day Berlin 2022
53 min
Next.js 13: Data Fetching Strategies
Workshop Free
- Introduction
- Prerequisites for the workshop
- Fetching strategies: fundamentals
- Fetching strategies – hands-on: fetch API, cache (static VS dynamic), revalidate, suspense (parallel data fetching)
- Test your build and serve it on Vercel
- Future: Server components VS Client components
- Workshop easter egg (unrelated to the topic, calling out accessibility)
- Wrapping up
React Summit 2022React Summit 2022
160 min
React at Scale with Nx
Workshop Free
The larger a codebase grows, the more difficult it becomes to maintain. All the informal processes of a small team need to be systematized and supported with tooling as the team grows. Come learn how Nx allows developers to focus their attention more on application code and less on tooling.
We’ll build up a monorepo from scratch, creating a client app and server app that share an API type library. We’ll learn how Nx uses executors and generators to make the developer experience more consistent across projects. We’ll then make our own executors and generators for processes that are unique to our organization. We’ll also explore the growing ecosystem of plugins that allow for the smooth integration of frameworks and libraries.