var str = new String('foobar');
const a = 'hello';
const b = new String('hello');
console.log(a); // "hello"
console.log(b); // "hello"
console.log(typeof a); // "string"
console.log(typeof b); // "object"
let str1 = 'hello'
let str2 = 'hello'
let strObj1 = new String('hello');
let strObj2 = new String('hello');
console.log(str1 === str2) // true
console.log(str1 == strObj1) // true
console.log(str1 === strObj1) // false
console.log(strObj1 == strObj2) // false