String

const dataTypeString = () => {
	return "I am a sample text";
};

Number

const dataTypeNumber = () => {
	return 5;
};

/* Special numeric values NaN (Not a Number). Infinity - Infinity, or any number of other numeric operations that
don’t yield a meaningful result.*/
const dataTypeNotANumber = () => {
	return 0 / 0;
};

BigInt

/* JavaScript Numbers can only safely store integers up to 2^53 - 1
BigInt (with n) is used for working with integers larger than that limit */

// Using BigInt literal with "n" suffix (precise, preferred)
const dataTypeBigInt = () => {
  return 1234567890123456789012345n;
};

// Using BigInt() constructor with a Number (may lose precision for large values)
const dataTypeBigInt = () => {
  return BigInt(1234567890123456789012345);
};

Boolean

const dataTypeBoolean = (value) => {
  return value === 1 ? true : false;
};

Undefined

const dataTypeUndefined = () => {
  return;
};

Null

const dataTypeNull = () => {
  return null;
};

Symbol