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JS Puzzles · Concept

Implicit globals

var declares variables with function, module, or global scope. It can also give each variable an initial value.

Last updated

Since
July 2015

Syntax

var name1;
var name1 = value1;
var name1 = value1, name2 = value2;

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  • let
  • const
  • Assignment (=)
  • Destructuring

Source: var - JavaScript | MDN. Checked 2026-11-03.