JavaScript Math trunc( ) Method

Below is the example of the Math trunc() Method.

• Example: When a positive float number passed as a parameter

  <script type="text/javascript">
           document.write(Math.trunc(15.56));
  </script>
• Output:

  15

The Math.trunc() method is used to return the integer part of a floating-point number by removing the fractional digits. In other words, Math.trunc() function cuts off the dot and the digits to the right of it.

Syntax:

Math.trunc(value)

Parameters: This method accepts a single parameter as mentioned above and described below:

• value . It is the floating-point number which is to be sent to the Math.trunc() function.

Return Value: The Math.trunc() method returns the integer part of the given number.

More codes for the above method are as follows:
Program 1: When a negative number of float type is passed as a parameter

<script type="text/javascript">
         document.write(Math.trunc(-15.56));
</script>

Output:

-15

Program 2: When a positive number between 0 and 1 is passed as a parameter:

<script type="text/javascript">
         document.write(Math.trunc(0.236));
</script>

Output:

0

Program 3: When a negative number between 0 and 1 is passed as a parameter:

<script type="text/javascript">
         document.write(Math.trunc(-0.236));
</script>

Output:

0

Supported Browsers:

• Google Chrome 38 and above
• Firefox 25 and above
• Opera 25 and above
• Safari 8 and above
• Edge 12 and above