Provide three examples of primitive data types in JavaScript.

Certainly! Here are three examples of primitive data types in JavaScript:

1. Number:
  
   let age = 25;
   

2. String:
   
   let name = "John";
   

3. Boolean:

   let isStudent = true;
   

These examples showcase three common primitive data types:

- Number: Used for numeric values, which can be integers or floating-point numbers.
- String: Used for textual data, which is a sequence of characters.
- Boolean: Used for logical values, representing either `true` or `false`.