Variables & Data Types
3 cara mendeklarasikan variabel:
const— tidak bisa diubah (recommended)let— bisa diubahvar— cara lama (hindari)
Data Types
- String, Number, Boolean, null, undefined, BigInt, Symbol
- Object, Array, Function
3 cara mendeklarasikan variabel:
const — tidak bisa diubah (recommended)let — bisa diubahvar — cara lama (hindari)const name = "Spear";
let score = 100;
const isActive = true;
const skills = ["HTML", "CSS", "JS"];
const user = { name: "Ali", level: 5 };
const output = document.getElementById('output');
output.innerHTML =
'const name = "'+name+'" → '+typeof name+'
'+
'let score = '+score+' → '+typeof score+'
'+
'const isActive = '+isActive+' → '+typeof isActive+'
'+
'const skills = '+JSON.stringify(skills)+' → Array
'+
'const user = '+JSON.stringify(user)+' → Object';