var-clean

Simple JavaScript library that clean variable

npm install var-clean

Usage:

var clean = require('var-clean').clean;
clean.cleanInteger(2);  //return 2
clean.cleanInteger('2');  //return 2
clean.cleanInteger('asdf');  //return undefined

var cleanOrThrow = require('var-clean').cleanOrThrow;
cleanOrThrow.cleanInteger(2);  //return 2
cleanOrThrow.cleanInteger('2');  //return 2
cleanOrThrow.cleanInteger('asdf');  //throw Error 'Not a Number'

Based on the spec:

clean

value | cleanBoolean | cleanTruthy | cleanInteger | cleanPositiveInteger | cleanString | cleanOnlyString ---|---|---|---|---|---|--- true | true | true | undefined | undefined | 'true' | undefined 'true' | true | true | undefined | undefined | 'true' | 'true' false | false | false | undefined | undefined | 'false' | undefined 'false' | false | false | undefined | undefined | 'false' | 'false' {} | undefined | true | undefined | undefined | undefined | undefined {ipsum: 'lorem'} | undefined | true | undefined | undefined | undefined | undefined 'lorem' | undefined | true | undefined | undefined | 'lorem' | 'lorem' '' | undefined | false | undefined | undefined | '' | '' 1 | undefined | true | 1 | 1 | '1' | undefined 0 | undefined | false | 0 | 0 | '0' | undefined 153 | undefined | true | 153 | 153 | '153' | undefined '153' | undefined | true | 153 | 153 | '153' | '153' -153 | undefined | true | -153 | undefined | '-153' | undefined '-153' | undefined | true | -153 | undefined | -'153' | -'153' undefined | undefined | false | undefined | undefined | 'undefined' | undefined null | undefined | false | undefined | undefined | 'null' | undefined

cleanOrThrow

value | cleanBoolean | cleanTruthy | cleanInteger | cleanPositiveInteger | cleanString | cleanOnlyString ---|---|---|---|---|---|--- true | true | true | Not a Number | Not a Number | 'true' | Not a String 'true' | true | true | Not a Number | Not a Number | 'true' | 'true' false | false | false | undefined | Not a Number | 'false' | Not a String 'false' | false | false | Not a Number | Not a Number | 'false' | 'false' {} | Not a Boolean | true | Not a Number | Not a Number | Not a String | Not a String {ipsum: 'lorem'} | Not a Boolean | true | Not a Number | Not a Number | Not a String | Not a String 'lorem' | Not a Boolean | true | Not a Number | Not a Number | 'lorem' | 'lorem' '' | Not a Boolean | false | Not a Number | Not a Number | '' | '' 1 | Not a Boolean | true | 1 | 1 | '1' | Not a String 0 | Not a Boolean | false | 0 | 0 | '0' | Not a String 153 | Not a Boolean | true | 153 | 153 | '153' | Not a String '153' | Not a Boolean | true | 153 | 153 | '153' | '153' -153 | Not a Boolean | true | -153 | Negative number | '-153' | Not a String '-153' | Not a Boolean | true | -153 | Negative number | -'153' | -'153' undefined | Not a Boolean | false | Not a Number | Not a Number | 'undefined' | Not a String null | Not a Boolean | false | Not a Number | Not a Number | 'null' | Not a String