is-whitespace-character
Check if a character is a whitespace character: \s, which equals all Unicode Space Separators (including [ \t\v\f]), the BOM (\uFEFF), and line terminator ([\n\r\u2028\u2029]).
Install
npm:
npm install is-whitespace-character 
Use
var whitespace = require('is-whitespace-character')
whitespace(' ') // => true
whitespace('\n') // => true
whitespace('\uFEFF') // => true
whitespace('_') // => false
whitespace('a') // => false
whitespace('💩') // => false 
API
whitespaceCharacter(character|code)
 
Check whether the given character code (number), or the character code at the first position (string), is a whitespace character.
 JarCasting
 JarCasting