+ 2
yes, and instead of zero you can use null, and every time you want to check if it is valid you can compare it by null
Often have questions like this?
Learn more efficiently, for free:
Hot today
Why is the output so high?
0 Votes
I'm a beginner
0 Votes
hilfe bei javascript einfĂŒhrung
1 Votes
list of list
0 Votes
How can I get more hearts?
0 Votes
Cant unlock practice
1 Votes
Views
0 Votes
symbols coad coach
0 Votes
Multiple read one write
0 Votes
help me
0 Votes