Can I Use JavaScript's `focus()` Function on a `` Element?-JS Tutorial-php.cn

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:

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>

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Can I Use JavaScript's `focus()` Function on a `` Element?

Focusing on a Element Using JavaScript

Focusing on a
Element Using JavaScript