Why is 1===1===1 false?

Question

In a browser console, entering 1===1 evaluates to true. Entering 1===1===1 evaluates to false.

I assume that this

Answer 1

The === operator doesn't just test equality, but also type equality. Since an integer is not a boolean, true === 1 is false.

Compare:

true == 1; // true
true === 1; // false

Example.