Why this javascript code is not working?

Question

https://code.sololearn.com/W21qauJg9Ps8/?ref=app

Answer 1

I understand how to use. thanks guys

Answer 2

Invalid statement. 2 instructions without any relation or separation.... Invalid syntax..

Edit :
Correct example :
document.write((4 > 2) , (10 < 15));
document.write("<br>", (4 > 2) && (10 < 15));
document.write("<br>", (4 > 2) || (10 < 15));

Answer 3

Your code was:
document.write((4 > 2) ! (10 < 15));

In this code you have puted (!) not operator inside 2 codition. I will give you syntax error because you cant use the (!) operator with this style. I dont know what do you trying to do. But i am giving you an example of correct syntax

Example correct syntxes :

document.write((4 > 2) && !(10 < 15));
-------------------
document.write((4 > 2) || !(10 < 15));

Answer 4

what do you want to write?