What is the Minimum Timeout Value for JavaScript's setTimeout?

Understanding Minimum Timeout Value in setTimeout

When implementing callback functions using JavaScript's setTimeout method, it's important to consider the minimum time delay that can be set. Different browsers have varying minimum timeout values to ensure compatibility.

Modern Browsers:

According to the HTML5 specification, modern browsers have a minimum timeout value of 4 milliseconds (ms). This value is consistent across browsers released in 2010 and onward.

Older Browsers:

Prior to Firefox 5.0, the minimum timeout value was 10 ms. This value was used to ensure compatibility across different browser versions and operating systems.

Choosing the Minimum Value:

To maintain compatibility across both modern and older browsers, it's recommended to use a minimum value of 10 ms for setTimeout. This ensures that the callback function will be executed after at least 10 ms in all supported browsers.

Example:

<code class="javascript">var minValue = 10;
if (typeof callback == 'function') {
    setTimeout(callback, minValue);
}</code>

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