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Number.parseInt()

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

Syntax

Number.parseInt(string,[ radix ])

string: The value to parse. If the string argument is not a string, then it is converted to a string (using the ToString abstract operation). Leading whitespace in the string argument 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.

An integer number parsed from the given string. If the first character cannot be converted to a number, NaN is returned.

This method has the same functionality as the global parseInt() function:

Number.parseInt === parseInt; // true

and is part of ECMAScript 2015 (its purpose is modularization of globals). Please see parseInt() for more details and examples.

Number.parseInt = parseInt;

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

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

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Last updated by: Rajesh_Choudhary, Oct 17, 2016, 3:20:01 AM