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HTML DOM queueMicrotask() Method

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  • Last Updated : 29 Jul, 2020
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The queueMicrotask() method, queues a microtask to be executed at a safe time prior to control returning to the browser’s event loop. The microtask is a short function that runs after the current task has completed its work and when there is no other code waiting to be run before control of the execution context is returned to the browser’s event loop. This lets your code run without interfering with any other, potentially higher priority, code that is pending.




  • function: A function to be executed when the browser engine determines it is safe to call your code.

Return value: undefined.

Example: In this example, we will execute our function using this method.


<body style="text-align:center;">
    <h1 style="color:green;">
        HTML | DOM queueMicroTask() method
    <button onclick="Geeks()">
        Click Here
    <p id="a"></p>
        var a = document.getElementById("a");
        function Geeks() {
            self.queueMicrotask(() => {
                a.innerHTML = "This is called "
                + "using queueMicrotask() method";


Before Clicking the Button:

After Clicking the Button:

Supported Browsers:

  • Google Chrome
  • Edge
  • Firefox
  • Safari
  • Opera

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