Shortest Program in JS

  1. Shortest Program in JS: Empty file. Still, browsers make global Execution context and global space along with Window object.
  2. Global scope: Anything that is not in a function, is in the global space.
  3. Variables present in a global space can be accessed by a “window” object. (like window.a)
  4. In global scope, (this === window) object. For example refer the below,
var a = 10;

Console.lig(windows.a) // 10
Console.log(a)  // 10
Console.log(this.a) // 10