JavaScript Data Types

A value in JavaScript is always of a certain type. For example, a string or a number.
There are eight basic data types in JavaScript. Here, we’ll cover them in general and in the next chapters we’ll talk about each of them in detail.

  let name = "Ilya";

// the expression is a number 1
alert( `hello ${1}` ); // hello 1

// the expression is a string "name"
alert( `hello ${"name"}` ); // hello name

// the expression is a variable, embed it
alert( `hello ${name}` ); // hello Ilya

JavaScript Primitives

1. JavaScript Data Types
2. JavaScript String
3. JavaScript Number
4. JavaScript BigInt
5. JavaScript Boolean
6. JavaScript undefined
7. JavaScript null
8. JavaScript Symbol
9. JavaScript Object
10. JavaScript Type
11. JavaScript typeof