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  1. www.w3schools.com › js › js_hoistingJavaScript Hoisting - W3Schools

    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). The let and const Keywords. Variables defined with let and const are hoisted to the top of the block, but not initialized.

  2. www.geeksforgeeks.org › javascript-hoistingJavaScript Hoisting - GeeksforGeeks

    Oct 9, 2024 · Hoisting is the default behavior in JavaScript where variable and function declarations are moved to the top of their respective scopes during the compilation phase. This guarantees that regardless of where these declarations appear within a scope, they can be accessed throughout that scope.

    • 11 min

  3. stackoverflow.com › questions › 15005098hoisting - Why does JavaScript hoist variables? - Stack Overflow

    Feb 7, 2018 · As Stoyan Stefanov explains in "JavaScript Patterns" book, the hoisting is result of JavaScript interpreter implementation. The JS code interpretation performed in two passes. During the first pass, the interpreter processes variable and function declarations. The second pass is the actual code execution step.

  4. www.geeksforgeeks.org › how-hoisting-works-inHow Hoisting works in JavaScript - GeeksforGeeks

    Jan 30, 2024 · In JavaScript, hoisting is a mechanism where variable and function declarations are moved to the top of their containing scope during the compilation phase. This means that you can use a variable or call a function before it is declared in your code.

  5. leonlovett.dev › javascript-hoisting-explained-whyJavaScript Hoisting Explained – Why Functions Move to the Top

    Jul 7, 2023 · JavaScript hoisting is a mechanism that moves variables and function declarations to the top of their respective scopes during the compilation stage. In simple terms, it means that you can use a variable or a function before it is declared in your code.

  6. www.javascripttutorial.net › javascript-hoistingJavaScript Hoisting Explained By Examples - JavaScript Tutorial

    JavaScript hoisting occurs during the creation phase of the execution context that moves the variable and function declarations to the top of the script. The JavaScript engine hoists the variables declared using the let keyword, but it doesn’t initialize them as the variables declared with the var keyword.

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  8. www.freecodecamp.org › news › javascript-let-andHoisting in JavaScript with let and const – and How it ...

    Nov 18, 2022 · How Hoisting Works with let/const in JavaScript. If you try to do the same thing as above with let or const, here's what happens: console.log(number) let number = 10 // or const number = 10 console.log(number) You get an error that says: ReferenceError: Cannot access 'number' before initialization.