Open In App

JavaScript Math trunc() Method

Improve
Improve
Like Article
Like
Save
Share
Report

The Math.trunc() method in JavaScript returns the integer part of a number by removing its fractional part. It essentially truncates the decimal portion of a number towards zero, resulting in an integer.

For positive numbers, it’s equivalent to flooring the number, while for negative numbers, it’s akin to ceiling the number.

Syntax:

Math.trunc(value)

Parameters:

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

  • value. It is the floating-point number that 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: 

JavaScript Math trunc() Method Examples

Example 1: Truncating Positive Number

When a positive float number passed as a parameter 

JavaScript
console.log(Math.trunc(15.56)); 

Output
15

Example 2: Truncating Negative Number

When a negative number of a float type is passed as a parameter 

JavaScript
console.log(Math.trunc(-15.56));   

Output
-15

Example 3: Passing Number between 0 and 1.

Here, we are passing number between 0 and 1.

JavaScript
console.log(Math.trunc(0.236));

Output
0

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:


Last Updated : 14 Mar, 2024
Like Article
Save Article
Share your thoughts in the comments
Similar Reads