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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));


  • 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.



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));



    Result : -90

    Program 2: When zero is passed as a parameter.

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



    Result : 0

    Supported Browsers:

    • Google Chrome
    • Internet Explorer
    • Firefox
    • Opera
    • Safari


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