Package Exports

is-natural-number-string

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (is-natural-number-string) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

is-natural-number-string

Check if a given value is a string that represents natural number

isNaturalNumberString('9478123289889839898438984843498934894'); //=> true
isNaturalNumberString('-1'); //=> false

Unlike is-natural-number, is-natural-number-string can handle a too large number that exceeds the JavaScript maximum safe integer 9007199254740991.

Installation

Package managers

npm

npm install is-natural-number-string

bower

bower install is-natural-number-string

Standalone

Download the script file directly.

API

isNaturalNumberString(val [, option])

val: String
option: Object
Return: Boolean

isNaturalNumberString('15'); //=> true
isNaturalNumberString('4.3'); //=> false

isNaturalNumberString('1'); //=> true
isNaturalNumberString('1.0'); //=> true
isNaturalNumberString('1.00000000000000000000000000'); //=> true

// non-string
isNaturalNumberString(15); //=> false
isNaturalNumberString(); //=> false

option.includeZero

Type: Boolean
Default: false

Determine whether this library regards 0 as a natural number or not.

isNaturalNumberString('0'); //=> false
isNaturalNumberString('0', {includeZero: true}); //=> true

License

Licensed under the MIT License.