rambda/src/pick.js

Lightweight faster alternative to Ramda

export function pick(propsToPick, obj){
  if (arguments.length === 1) return _obj => pick(propsToPick, _obj)

  if (obj === null || obj === undefined){
    return undefined
  }
  const keys =
    typeof propsToPick === 'string' ? propsToPick.split(',') : propsToPick

  const willReturn = {}
  let counter = 0

  while (counter < keys.length){
    if (keys[ counter ] in obj){
      willReturn[ keys[ counter ] ] = obj[ keys[ counter ] ]
    }
    counter++
  }

  return willReturn
}