• JS DOM
  • DOM Event Listener
​x
 
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<!DOCTYPE html>
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<html>
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<body>
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​
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<h1>JavaScript removeEventListener()</h1>
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<button onclick="removeHandler()">Remove</button>
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<p id="demo"></p>
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​
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<script>
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    document.addEventListener("mousemove", myFunction);
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​
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    function myFunction() {
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        document.getElementById("demo").innerHTML = Math.random();
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    }
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​
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    function removeHandler() {
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        document.removeEventListener("mousemove", myFunction);
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    }
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</script>
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​
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</body>
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</html>