javascript

// Delete object
delete obj.item;

// Get index array|object
var index = obj.indexOf(item);

// is object
typeof obj === 'object'

// object length
Object.keys(obj).length > 0

// push object
array_push($array, (object)['usuario'=>109, 'orden'=>1]);

// Delete item of array
array.splice(index, array.length);

array.splice(index, 1);

// forEach break
[1,2,3,4,5].some(function (v, k) {
  if (k == 2) return false;
});

// clone
this.orders = [orders]
this.editOrder = Object.assign({}, order)

// set value
// this.$set(this.editOrder, index, index)