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    Number.parseInt()

    The Number.parseInt() method parses a string argument and returns an integer of the specified radix or base.

    Syntax

    Number.parseInt(string[, radix])

    Parameters

    string
    The value to parse. If string is not a string, then it is converted to a string (using the ToString abstract operation). Leading whitespace in the string is ignored.
    radix
    An integer between 2 and 36 that represents the radix (the base in mathematical numeral systems) of the above mentioned string. Specify 10 for the decimal numeral system commonly used by humans. Always specify this parameter to eliminate reader confusion and to guarantee predictable behavior. Different implementations produce different results when a radix is not specified, usually defaulting the value to 10.

    Description

    This method is completely the same function with the global parseInt() function:

    Number.parseInt === parseInt; // true

    and is part of ECMAScript 6 (its purpose is modularization of globals). Please see parseInt() for more details and examples.

    Polyfill

    Number.parseInt = parseInt;

    Specifications

    Specification Status Comment
    ECMAScript 2015 (6th Edition, ECMA-262)
    The definition of 'Number.parseInt' in that specification.    		 Standard Initial definition.
    ECMAScript 2017 Draft (ECMA-262)
    The definition of 'Number.parseInt' in that specification.    		 Draft  

    Browser compatibility

    Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
    Basic support (Yes) 25 (25) No support (Yes) No support
    Feature Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
    Basic support No support 25 (25) No support No support No support

    See also

    Document Tags and Contributors

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     Contributors to this page: fscholz, SphinxKnight, Jeremie, ziyunfei, danielnixon, Mingun, realityking, raztus
     Last updated by: fscholz,