Javascript var vs let in global declaration

Introduction

Unlike the var keyword, when declaring variables using let in the global context, variables will not attach to the window object as they do with var. 

var name = 'CSS'; 
console.log(window.name);  // 'CSS' 
              
let age = 26; 
console.log(window.age);   // undefined

let declarations will still occur inside the global block scope.




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