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ceil()  Math  class method

Description

Returns the smallest integer greater than or equal to a number.

  • Like all class methods ceil() should be used on the class rather than an instance of the class.

Syntax


Signature Description
Math.ceil(value)Returns the smallest integer greater than or equal to a number.

Parameters


Parameter Description
valueThe value you wish to find the ceiling value for:
  • Non-numeric strings returns NaN.
  • Passing no parameter returns NaN.
  • Passing null returns 0.

Examples

The code below displays ceil() usage.


// Store results in an array.
var ceilValues = new Array(6);
ceilValues[0] = Math.ceil(1.9);
ceilValues[1] = Math.ceil(-10.8);
ceilValues[2] = Math.ceil('100.1');
ceilValues[3] = Math.ceil('five');
ceilValues[4] = Math.ceil();
ceilValues[5] = Math.ceil(null);
alert(ceilValues);  

Press the button below to action the above code:

Related Tutorials

JavaScript Advanced Tutorials - Lesson 4 - Math



  

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