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
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
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.
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.