Where Art Thou

where_art_thou.js

function where(collection, source) {
  var arr = [];
  // What's in a name?
  src_keys = Object.keys(source);
  arr = collection.filter(function(i){
    for(j = 0; j < src_keys.length; j++){
      if(!i.hasOwnProperty(src_keys[j]) || i[src_keys[j]] !== source[src_keys[j]]){
        return false;
      }
    }
    return true;
   });
  // A rose by any other name
  return arr;
}