JavaScript Math floor() Method

Last Updated : 08 Jul, 2020

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

Example:

<script type="text/javascript">
document.write("Result : " + Math.floor(.89));
</script>
Output:
```
Result : 0
```

The Math.floor method is used to round off the number passed as a parameter to its nearest integer in Downward direction of rounding i.e. towards the lesser value.

Syntax:

Math.floor(value)

Parameters: This method accepts single parameter asmentioned above and described below:

Value: It is the value which is to be tested for Math.floor.

Return Value: The Math.floor() method returns the smallest integer greater than or equal to the given number.

Below examples illustrate the Mathe floor() method in JavaScript:

Example 1:

Input : Math.floor(.89)
Output: 0

Example 2:

Input :  Math.floor(-89.02)
Output : -90

Example 3:

Input : Math.floor(0)
Output : 0

More codes for the above method are as follows:

Program 1: When a negative number is passed as a parameter.

<script type="text/javascript">
         document.write("Result : " + Math.floor(-89.02));
</script>

Output:

Result : -90

Program 2: When zero is passed as a parameter.

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

Output:

Result : 0

Supported Browsers:

Google Chrome
Internet Explorer
Firefox
Opera
Safari

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JavaScript Math floor() Method