How do I declare a variable in JavaScript?
Asked on Jul 03, 2024
Answer
In JavaScript, you can declare a variable using "let", "const", or "var". "let" and "const" are preferred in modern ES6+ code due to their block scope and other benefits.
<!-- BEGIN COPY / PASTE -->
let name = "Alice";
const age = 30;
var city = "New York";
<!-- END COPY / PASTE -->Additional Comment:
✅ Answered with JavaScript best practices.- "let" is used for variables that can be reassigned.
- "const" is used for variables that should not be reassigned.
- "var" is the old way of declaring variables and is function-scoped, which can lead to unexpected behavior. It's generally recommended to use "let" or "const" instead.
- Always choose "const" by default unless you know the variable will need to change.
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