simple selector

gistfile1.js

var nativeSlice = Array.prototype.slice
var CAN_SLICE_NODELISTS = function(){
  try {
    nativeSlice.call(document.documentElement.children)
    return true
  } catch(e){
    return false
  }
}()
var ACCEPTED_NODETYPES = {
  1 : null,
  9 : null
}

function createArray(nodeList) {
  if(CAN_SLICE_NODELISTS) {
    return nativeSlice.call(nodeList)
  }
  var index = -1
  var length = nodeList.length
  var result = Array(length)
  while(++index < length) {
    result[index] = nodeList[index]
  }
  return result
}

function $(selector /*, context */){
  var context = arguments[1]
  if(typeof selector != "string") {
    throw new TypeError("selector must be a string")
  }
  if(arguments.length < 2) {
    context = document
  }
  if(!context || !ACCEPTED_NODETYPES.hasOwnProperty(context.nodeType)) {
    return []
  }
  return createArray(context.querySelectorAll(selector))
}

module.exports = $

simple DOM selector

$(selector[, context=document]) > array

returns an array containing the elements matching the given selector within the given contextNode