JavaScript Prototype “Class” Manager

gistfile1.js

/* === MANAGER CLASS === */

var Manager = function(cons) {
  this.cons = cons;
  this.objs = [];
};

Manager.prototype.create = function(args) {
  var inst = new this.cons(args)
  this.objs.push(inst);
  return inst;
};

Manager.prototype.all = function() {
  return this.objs;
};

Manager.prototype.findBy = function(p, v) {
  for(var i = 0, len = this.objs.length; i < len; i++) { 
    if(this.objs[i][p] === v) {
      return this.objs[i];
    }
  }
};

Manager.prototype.remove = function(o) {
  for(var i = 0, len = this.objs.length; i < len; i++) {
    if(this.objs[i].id === o.id) {
      this.objs.splice(i,1);
      i = this.objs.length;
    }
  }
};

/***

var Person = function() {
    this.init();
}

var AddressBook = new Manager(Person);

AddressBook.create({FirstName: “Bob”});

***/

via http://taitems.tumblr.com/post/1654411534/javascript-prototype-class-manager