Javascript — Data Types in JavaScript

JavaScript has different types of data:

  • String: text
  • Number: numbers
  • Boolean: true/false
  • Array: list of items
  • Object: key-value pairs
  • null and undefined: empty values
let name = \"Alice\"; // String
let age = 30;        // Number
let isOnline = true; // Boolean
let colors = [\"red\", \"blue\"]; // Array
let person = { name: \"Alice\", age: 30 }; // Object
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