Javascript Array containsObjectById(id)
/**//w w w . j a v a2s . c om * Returns true if array contains object with specified id, false otherwise * @memberof module:ArrayFunctions * @deprecated * @param {number} id Object's ID * @returns {boolean} */ Array.prototype.containsObjectById = function (id) { for (var i = 0; i < this.length; i++) { if (this[i].id === id) { return true; } } return false; };