JavaScript Math ceil( ) Method

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

  • Example:
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    <script type="text/javascript">
             document.write("Result : " + Math.ceil(.89));
    </script>

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  • Output:
    Result : 1

The Math.ceil method is used to return the smallest integer greater than or equal to a given number. The ceil() is always used as Math.ceil() since it is a static method of Math.

Syntax:

Math.ceil(value)

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

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

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



Below examples illustrate the Math ceil() method in JavaScript:

  • Example 1:
    Input : Math.ceil(.89)
    Output: 1
  • Example 2:
    Input :  Math.ceil(-89.02)
    Output : -89
  • Example 3:
    Input : Math.ceil(0)
    Output : 0
  • More codes for the above method are as follows:

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

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

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    Output:

    Result : -89

    Program 2: When zero is passed as a parameter.

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

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    Output:

    Result : 0

    Supported Browsers:

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

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