Strings, Arrays & Hash Tables — Let’s Talk About the One You’re Probably Not Using Enough
If you’ve been coding for a bit, chances are you're already comfortable working with strings and arrays. You loop through them, slice them, search them, sort them — all good. So let’s skip the warm-up and jump straight into the one structure that quietly powers a ton of efficient solutions but often doesn’t get the spotlight it deserves:

If you’ve been coding for a bit, chances are you're already comfortable working with strings and arrays.
You loop through them, slice them, search them, sort them — all good.
So let’s skip the warm-up and jump straight into the one structure that quietly powers a ton of efficient solutions but often doesn’t get the spotlight it deserves: