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 install is-natural-number-string
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
Copyright (c) 2016 Shinnosuke Watanabe
Licensed under the MIT License.