javscript call

1function runFunction() {
2  myFunction();
3}
4
5function myFunction() {
6  alert("runFunction made me run");
7}
8
9runFunction();

1function Product(name, price) {
2  this.name = name;
3  this.price = price;
4
5  if (price < 0)
6    throw RangeError('Cannot create product "' + name + '" with a negative price');
7  return this;
8}
9
10function Food(name, price) {
11  Product.call(this, name, price);
12  this.category = 'food';
13}
14Food.prototype = new Product();
15
16function Toy(name, price) {
17  Product.call(this, name, price);
18  this.category = 'toy';
19}
20Toy.prototype = new Product();
21
22var cheese = new Food('feta', 5);
23var fun = new Toy('robot', 40);

1myFunc.call(thisArg, ...args)

1func.call([thisArg[, arg1, arg2, ...argN]])