Web Reference: Hoisting is JavaScript's default behavior of moving all declarations to the top of the current scope (to the top of the current script or the current function). Variables defined with let and const are hoisted to the top of the block, but not initialized. It is the word everyone throws around when talking about JavaScript, yet no one takes the time to actually explain what hoisting is, how it works, and why it is important. Feb 21, 2026 · Code snippet examples which will help to grasp the concept of Hoisting in JavaScript, with solutions to understand how it works behind the scene.
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