JavaScript Data Types

/**  

 * Data types in JavaScript  
 * @link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures  
 */  

// String:  
let stringDemo = "A string of text.";  
console.log("String:", stringDemo);  

// Numbes:  
let integerDemo = 4;  
console.log("Integer:", integerDemo);  

let floatDemo = 5.6;  
console.log("Floating point number:", floatDemo);  

// Boolean:  
let booleanDemo = true;  
console.log("Boolean value:", booleanDemo);  

// Null value (nothing):  
let nullDemo = null;  
console.log("Null value:", nullDemo);  

// Undefined:  
let undefinedDemo;  
console.log("Undefined:", undefinedDemo);  

let undefinedAssignedDemo = undefined;  
console.log("Undefined assigned:", undefinedAssignedDemo);  

// Object:  
const objectDemo = {  
  dance: "Mambo",  
  number: 5,  
};  
console.log("Object:", objectDemo);  

// Array:  
const arrayDemo = ["tango", "foxtrot", "waltz", "rumba", "bolero"];  
console.log("Array:", arrayDemo);