Strings equality in JavaScript

Question

Why "string" === "string" is false in JavaScript.

Answer 1

// Test the code again

console.log("string" === "string") // true

// Do you mean new String("string")?
console.log(new String("string") === new String("string")) // false, different objects

Answer 2

a and b are different objects. they are different instances of String().
=== compares for identity, not the content of the String objects.

Answer 3

var a = new String("hello");
var b = new String("hello");

if(a === b) {
alert("a");
} else {
alert("b");
}

Why this is resulting in "b"?