Can I Use JavaScript's `focus()` Function on a `` Element?
Focusing on a Element Using JavaScript
Question:
Is it feasible to focus on a
element with the JavaScript focus() function?
Background:
A
element is being used:
<code class="html"><div id="tries">You have 3 tries left</div></code>
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And an attempt is made to focus on this
with the code:
<code class="javascript">document.getElementById('tries').focus();</code>
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However, the focus is not being applied.
Answer:
Yes, it is possible to focus on a
element using the focus() function. The key step is to assign a tabindex attribute to the :
<code class="html"><div tabindex="0">You have 3 tries left</div></code>
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A tabindex of 0 places the tag within the natural tab order of the page. Higher numbers assign a specific order of priority, with 1 being the first, 2 being the second, and so on.
Additionally, a tabindex of -1 makes the
focusable only through scripts, not by user actions.
Here's a code example illustrating this:
<code class="javascript">document.getElementById('tries').onclick = function () {
document.getElementById('scripted').focus();
};</code>
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<code class="css">div:focus {
background-color: Aqua;
}</code>
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<code class="html"><div>Element X (not focusable)</div>
<div tabindex="0">Element Y (user or script focusable)</div>
<div tabindex="-1" id="scripted">Element Z (script-only focusable)</div>
<div id="test">Set Focus To Element Z</div></code>
Copy after loginThe above is the detailed content of Can I Use JavaScript's `focus()` Function on a `` Element?. For more information, please follow other related articles on the PHP Chinese website!
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Question:
Is it feasible to focus on a
Background:
A
<code class="html"><div id="tries">You have 3 tries left</div></code>
And an attempt is made to focus on this
<code class="javascript">document.getElementById('tries').focus();</code>
However, the focus is not being applied.
Answer:
Yes, it is possible to focus on a
<code class="html"><div tabindex="0">You have 3 tries left</div></code>
A tabindex of 0 places the tag within the natural tab order of the page. Higher numbers assign a specific order of priority, with 1 being the first, 2 being the second, and so on.
Additionally, a tabindex of -1 makes the
Here's a code example illustrating this:
<code class="javascript">document.getElementById('tries').onclick = function () { document.getElementById('scripted').focus(); };</code>
<code class="css">div:focus { background-color: Aqua; }</code>
<code class="html"><div>Element X (not focusable)</div> <div tabindex="0">Element Y (user or script focusable)</div> <div tabindex="-1" id="scripted">Element Z (script-only focusable)</div> <div id="test">Set Focus To Element Z</div></code>
The above is the detailed content of Can I Use JavaScript's `focus()` Function on a `` Element?. For more information, please follow other related articles on the PHP Chinese website!

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Undress AI Tool
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Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

Frequently Asked Questions and Solutions for Front-end Thermal Paper Ticket Printing In Front-end Development, Ticket Printing is a common requirement. However, many developers are implementing...

JavaScript is the cornerstone of modern web development, and its main functions include event-driven programming, dynamic content generation and asynchronous programming. 1) Event-driven programming allows web pages to change dynamically according to user operations. 2) Dynamic content generation allows page content to be adjusted according to conditions. 3) Asynchronous programming ensures that the user interface is not blocked. JavaScript is widely used in web interaction, single-page application and server-side development, greatly improving the flexibility of user experience and cross-platform development.

There is no absolute salary for Python and JavaScript developers, depending on skills and industry needs. 1. Python may be paid more in data science and machine learning. 2. JavaScript has great demand in front-end and full-stack development, and its salary is also considerable. 3. Influencing factors include experience, geographical location, company size and specific skills.

Discussion on the realization of parallax scrolling and element animation effects in this article will explore how to achieve similar to Shiseido official website (https://www.shiseido.co.jp/sb/wonderland/)...

Learning JavaScript is not difficult, but it is challenging. 1) Understand basic concepts such as variables, data types, functions, etc. 2) Master asynchronous programming and implement it through event loops. 3) Use DOM operations and Promise to handle asynchronous requests. 4) Avoid common mistakes and use debugging techniques. 5) Optimize performance and follow best practices.

The latest trends in JavaScript include the rise of TypeScript, the popularity of modern frameworks and libraries, and the application of WebAssembly. Future prospects cover more powerful type systems, the development of server-side JavaScript, the expansion of artificial intelligence and machine learning, and the potential of IoT and edge computing.

How to merge array elements with the same ID into one object in JavaScript? When processing data, we often encounter the need to have the same ID...

Explore the implementation of panel drag and drop adjustment function similar to VSCode in the front-end. In front-end development, how to implement VSCode similar to VSCode...
