JavaScript Math clz32()

clz32() Syntax

The syntax of the Math.clz32() method is:

Math.clz32(number)

Here, clz32() is a static method. Hence, we are accessing the method using the class name, Math.

clz32() Parameter

The Math.clz32() method takes in a single parameter:

• number - value whose leading zero bits is to be calculated (in 32-bit representation)

clz32() Return Value

The clz32() method returns:

• number of 0 bits 32-bit binary representation of the number

Example 1: JavaScript Math.clz32()

Here, Math.clz32() converts the specified number into its 32-bit binary representation and counts the leading 0.

1. Math.clz32(2)

• 32-bit representation: 00000000 00000000 00000000 00000010
• Number of leading zero: 30

2. Math.clz(210)

• 32-bit representation: 00000000 00000000 00000000 11010010
• Number of leading zero: 24

3. Math.clz(1200)

• 32-bit representation: 00000000 00000000 00000100 10110000
• Number of leading zero: 21

Example 2: Math.clz32() with Boolean Values

Here, we have used the clz32() method with boolean values. JavaScript treats boolean values true as 1 and false as 0.

So, the method calculates the leading zero bits for value 1 and 0 respectively.

Example 3: Math.clz32() with a Non-Numeric Argument

In the above example, we have tried to count the leading zeroes of the string "Harry".

clz32() will first convert the string "Harry" to its corresponding 32-bit binary format and treat it as a 0.

Hence, we get 32 as the output.

Recommended readings:

• JavaScript Math ceil()
• JavaScript Math sign()
• JavaScript Math round()