Data types in JavaScript?

javascript data types img

In JavaScript, there are several data types that are used to store and manipulate data. Here’s a tutorial on the different types of data types in JavaScript:

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1. Numbers

let num = 5;

The number data type is used to store numeric values. It can be a positive, negative, or decimal number.

2. Strings:

let str = "Hello, World!";

The string data type is used to store text. It’s created by enclosing text in quotation marks (either single or double).

3. Booleans:

let bool = true;

The boolean data type is used to store true/false values. It’s often used in conditional statements.

4. Undefined:

let undefinedVariable;

The undefined data type is used to represent a variable that has not been assigned a value.

5. Null:

let nullVariable = null;

The null data type is used to represent a deliberate non-value.

6. Objects:

let obj = { name: "John", age: 30 };