Dev Tools · 1h ago
Var vs Let vs Const: Key Differences in JavaScript
This post compares var, let, and const in ES6 across scope, hoisting, redeclaration, and temporal dead zone. Var is function-scoped and can be redeclared, while let and const are block-scoped and cannot be redeclared. Const additionally prevents reassignment, making it ideal for constants.
Meridian48 take
A solid primer for beginners, but experienced devs may find it too basic; the real takeaway is to avoid var in modern code.
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