JavaScript Data Types

المعرفة:: JavaScript الحالة::مؤرشفة المراجع:: JavaScript Essential Training

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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);