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. Jul 11, 2025 · JavaScript Hoisting refers to the process whereby the interpreter appears to move the declaration of functions, variables, classes, or imports to the top of their scope, prior to execution of the code. You'll learn how JavaScript hoisting works, specifically how functions are hoisted and can be called even before they are defined. In just one minute, you’ll master the core idea behind JS...
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