@optimal/arguments

@optimal/arguments

Optimal conversion of arguments to an array (allows optimization, no leaked memory).

Optimization is prevented when doing [].slice.call(arguments) or Array.prototype.slice.call(arguments).

It's a "leak" when the arguments is passed to another function or returned from a function.

So, we must create an array from the arguments. This would be an annoying bit of repetitive code.

This library takes care of this for you.

See article

Install

npm install @optimal/arguments --save

Usage

var arrayOf = require('@optimal/arguments')

function optimizable() {
  // these are bad:
  // [].slice.call(arguments)
  // [].slice.call(arguments, 1)
  // arguments[3] // when 3 is an invalid index
  // return arguments

  // this creates a new array without looping
  var args = arrayOf(arguments)

  // Or, select arguments with start/end like slice():
  var args = arrayOf(arguments, 1, 3)

  // now you can do this:
  callAnotherFunction(args)
  // or this:
  return args
}

MIT License