Use Strict Examples

app.js

// Whole-script strict mode syntax
(function($) {
  'use strict';
  
  // Author code below
  function hello(){
    return "Hi! I'm in strict mode!";  
  }
  
  // Author code below
  function helloAgain(){
    return "Hi! I'm also in strict mode!";  
  }
  
})(jQuery);

// Function-level strict mode syntax
function strict(){
  'use strict';
  return "Hi!  I'm a strict mode function!";
}