JavaScript: Why is the output false?

Question

console.log(`${window === this} (window === this)`)
console.log(`${window === self} (window === self)`)
console.log(`${this === self} (this === self)`)

console.log(`${window === this === self} (window === this === self)`)

Why is window === self === this false in JavaScript

Answer 1

Because you can't chain equality operators in such a way in javascript. window === this === self is actually the same as: (window === this) === self where the parentheses is evaluated first. In other words window === this === self equals true === self which evaluates to false.