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SpiderJS 🕷 | Hoisting in JavaScript
- Hoisting in JavaScript moves variable and function declarations to the top of their scope before execution.
- In ES5, var variables are hoisted with undefined, and function declarations are fully hoisted.
- In ES6+, let and const are hoisted but enter a Temporal Dead Zone (TDZ), causing errors if accessed before declaration.
- Arrow functions are not hoisted and must be declared before use.
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