Logical operator || in javascript, 0 stands for Boolean false?

Question

Can anyone help me with the operator in JavaScript like "||" which returns the value as -1 for the below code:

var test = 0 || -1 ;

console.log(test);

Any help would be appreciated.

Answer 1

Basically, || operator stands for logical OR.

So, it will return as -1. Whereas, if it was something like this:

var test  = 0 || false || undefined || "" || 2 || -1

Then, it will return 2.

I hope this will help.

Want to become a Java Expert? Join Java Certification now!!

Want to know more about Java? Watch this video on Java Tutorial for Beginners | Java Programming: