concat-arrays Concatenates arrays or array-like objects (arguments) var concat = require('concat-arrays')concat([1, 2], [3, 4], [4]) // returns [1, 2, 3, 4, 4] // Unlike [].concat, this module also works with argumentsfunction appendOne () { return concat(arguments, [1])} appendOne('3', '2') // returns [3, 2, 1] // It rejects falsy valuesconcat(null, [], undefined) // returns []