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    The Math.SQRT2 property represents the square root of 2, approximately 1.414:

    Math.SQRT2=21.414\mathtt{\mi{Math.SQRT2}} = \sqrt{2} \approx 1.414

    Property attributes of Math.SQRT2
    Writable no
    Enumerable no
    Configurable no


    Because SQRT2 is a static property of Math, you always use it as Math.SQRT2, rather than as a property of a Math object you created (Math is not a constructor).


    Example: Using Math.SQRT2

    The following function returns the square root of 2:

    function getRoot2() {
      return Math.SQRT2;
    getRoot2(); // 1.4142135623730951


    Specification Status Comment
    ECMAScript 1st Edition. Standard Initial definition. Implemented in JavaScript 1.0.
    ECMAScript 5.1 (ECMA-262)
    The definition of 'Math.SQRT2' in that specification.
    ECMAScript 6 (ECMA-262)
    The definition of 'Math.SQRT2' in that specification.
    Release Candidate  

    Browser compatibility

    Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
    Basic support (Yes) (Yes) (Yes) (Yes) (Yes)
    Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
    Basic support (Yes) (Yes) (Yes) (Yes) (Yes) (Yes)

    See also

    Document Tags and Contributors

    Contributors to this page: evilpie, Sheppy, Takenbot, fscholz, Mingun, ethertank,, Mgjbot, Maian, Dria, Kyodev
    Last updated by: Mingun,