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    Date.prototype.valueOf()

    Summary

    The valueOf() method returns the primitive value of a Date object.

    Syntax

    dateObj.valueOf()

    Parameters

    None.

    Description

    The valueOf() method returns the primitive value of a Date object as a number data type, the number of milliseconds since midnight 01 January, 1970 UTC.

    This method is functionally equivalent to the Date.prototype.getTime() method.

    This method is usually called internally by JavaScript and not explicitly in code.

    Examples

    Example: Using valueOf()

    var x = new Date(56, 6, 17);
    var myVar = x.valueOf();      // assigns -424713600000 to myVar
    

    Specifications

    Specification Status Comment
    ECMAScript 1st Edition. Standard Initial definition. Implemented in JavaScript 1.1.
    ECMAScript 5.1 (ECMA-262)
    The definition of 'Date.prototype.valueOf' in that specification.
    Standard  
    ECMAScript 6 (ECMA-262)
    The definition of 'Date.prototype.valueOf' in that specification.
    Draft  

    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, fscholz, Mingun, ethertank, Ptak82, Maian, Dria
    Last updated by: Mingun,
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