implementation of intersection method

intersection.js

intersection: function (n) {
    var argArray = []
    var results

    this.each(arguments, function(currVal) {
      argArray.push(currVal)
    })

    for (var i = 1; i < argArray.length; i++) {
      results = this.filter(argArray[i], function(currVal) {
        return this.contains(n, currVal)
      })
    }
    return results
  }