TIL26: Comparison by Value and Reference

• Comparison by Value

let a = 'hello';
let b = a;
console.log(a==b);  // true
console.log(a===b); // true

let a = 'hello';
let b = 'hello';
console.log(a==b);  // true
console.log(a===b); // true

• Comparison by Reference

let a = {};
let b = a;
console.log(a==b);  // true
console.log(a===b); // true

let a = {};
let b = {};
console.log(a==b);  // false
console.log(a===b); // false