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    Number.prototype

    Summary

    The Number.prototype property represents the prototype for the Number constructor.

    Property attributes of Number.prototype
    Writable no
    Enumerable no
    Configurable no

    Description

    All Number instances inherit from Number.prototype. The prototype object of the Number constructor can be modified to affect all Number instances.

    Properties

    Number.prototype.constructor
    Returns the function that created this object's instance. By default this is the Number object.
    Properties inherited from Object:

    Methods

    Number.prototype.toExponential()
    Returns a string representing the number in exponential notation.
    Number.prototype.toFixed()
    Returns a string representing the number in fixed-point notation.
    Number.prototype.toLocaleString()
    Returns a string with a language sensitive representation of this number. Overrides the Object.prototype.toLocaleString() method.
    Number.prototype.toPrecision()
    Returns a string representing the number to a specified precision in fixed-point or exponential notation.
    Number.prototype.toSource()
    Returns an object literal representing the specified Number object; you can use this value to create a new object. Overrides the Object.prototype.toSource() method.
    Number.prototype.toString()
    Returns a string representing the specified object in the specified radix (base). Overrides the Object.prototype.toString() method.
    Number.prototype.valueOf()
    Returns the primitive value of the specified object. Overrides the Object.prototype.valueOf() method.

    Specifications

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

     

    Document Tags and Contributors

    Last updated by: Markus Prokott,