What data types do you know?

Primitive types:

• String: Text strings.
• Number: Numbers (integers and floating-point).
• Boolean: Logical values (true or false).
• Null: Absence of a value, intentionally set by the developer.
• Undefined: Absence of a value that has not yet been assigned.
• Symbol: A unique and immutable primitive, often used as object keys.
• BigInt: Arbitrary-precision integers.

Object type:

• Object: A complex data type used for storing collections of data and more complex entities.

  // Example of an object
  const person = {
      name: 'Alexander',
      age: 30
  };
  

Additionally, functions in JavaScript are also first-class objects:

// Example of a function
const greet = function(name) {
    return `Hello, ${name}!`;
};