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JavaScript Math.clz32() Function

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  • Last Updated : 30 Dec, 2022
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The Math.clz32( ) function in JavaScript returns the number of leading zero bits in the 32-bit binary representation of a number. Clz32 stands for Count Leading Zeros 32. If the passed parameter is not a number, then it will be converted into a number first and then converted to a 32-bit unsigned integer. If the converted 32-bit unsigned integer is 0, then the function returns 32, since all the bits are 0.

 Syntax:

Math.clz32(number)

Parameters Used: number: It is the value that is to be tested for CountLeadingZeros. 

Return Value: It returns the number of leading zero bits in the 32-bit binary representation of the given number.

Example 1: When a positive number is passed as a parameter. 

Javascript




<script type="text/javascript">
        console.log("Output : " + Math.clz32(5));        
    </script>


Output:

Output : 29

Example 2: When a negative number is passed as a parameter. 

Javascript




<script type="text/javascript">
        console.log("Output : " + Math.clz32(-5));        
    </script>


Output:

Output : 0

Example 3: When zero is passed as a parameter. 

Javascript




<script type="text/javascript">
        document.write("Output : " + Math.clz32(0));        
    </script>


Output:

Output : 32

We have a complete list of Javascript Math Objects methods, to check those please go through this Javascript Math Object Complete reference article.

Supported Browsers:

  • Google Chrome 1 and above
  • Internet Explorer 3 and above
  • Firefox 1 and above
  • Opera 3 and above
  • Safari 1 and above

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