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Explain 'this' keyword in JavaScript.

Q: Explain 'this' keyword in JavaScript.

**Core concept (TL;DR).** this is **not** decided by where a function is written — it is decided by **how the function is called** (the call-site). Four rules resolve it, checked from highest precedence down; arrow functions opt out entirely and inherit this from their surrounding scope. 'this' is bound at the call-site, by these rules new Foo() <text x="30" y="68" fill="currentColor" font-size=

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'this' is a common source of confusion. Candidates should be able to explain its context-dependent nature.

thiscontextfunctionsscope

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JSHow the call-site changes 'this'

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