JS

CHECK VALUE EXISTS IN JS OBJECT

(quick guide & examples)

THE OBJECT var obj = {   Name: "Jon",   Email: "jon@doe.com" };

EXTRACT VALUES TO FLAT ARRAY, CHECK USING INCLUDES var val = Object.values(obj); var has = val.includes("Jon"); console.log(has); // true

EXTRACT VALUES TO ARRAY & CHECK

01

MANUAL LOOP AND CHECK

02

MANUAL LOOP & CHECK var check = "Jon"; var has = false; for (let k in obj) { if (obj[k] == check) {   has = true; break; }} console.log(has); // true

THE OBJECT var obj = {   Name: "Jon",   Email: "jon@doe.com" };