JavaScript Tutorial in Hindi #3 | Let, Var, and Const Explained with Examples (2025)
What are var, let, and const?
| Feature | var | Let | Const |
| Scope | Function-scoped | Block-Scope | Block-Scope |
| Can reassign? | Yes | Yes | No |
| Can redeclare? | Yes | No | No |
| Hoisted? | Hoisted (but undefined) | Hoisted (not undefined) | Hoisted (not undefined) |
| Recommended? | No | Yes | Yes |