Hoisting
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What is Hoisting?
Hoisting is JavaScript's behavior of moving variable and function declarations to the top of their containing scope before code execution. Variables declared with var are hoisted and initialized as undefined. Function declarations are fully hoisted, meaning they can be called before they appear in the source code. let and const are hoisted but not initialized, resulting in a temporal dead zone.
Free resources to learn Hoisting
More in stage 2: All about Variables
Hoisting: common questions
Can I learn Hoisting in Hindi?
This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain Hoisting in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.
Is this Hoisting tutorial for beginners?
It is lesson 11 of 124 in the free JavaScript roadmap, in stage 2, All about Variables. If you are new to JavaScript, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.