(ES6) ES6 (2016)

Globalscope (GL02)

   1:  // Implicit global variable created without var, let, or const (non-strict) - DON'T DO THIS!
   2:  implicitGlobal = "Oops! I'm global too!"; // Becomes a property of window
   3:  console.log(window.implicitGlobal); // Output: Oops! I'm global too!
   4:  
   5:  
   6:  function implicitGlobals() {
   7:      implicitVar = "I'm implicit global, but created inside function";  // No var, let, or const declaration
   8:  }
   9:  implicitGlobals();
  10:  console.log(implicitVar) // I'm implicit global, but created inside function
  11:  console.log(window.implicitVar) // I'm implicit global, but created inside function



Global Scope (Browser):
Implicit global variable

Oops! I'm global too!
I'm implicit global, but created inside function
I'm implicit global, but created inside function





Globalscope context:






ES6 context:



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