Help me understand how MAP works

[Abdullah_Suleman]

Dear Ben, the way you taught about maps was extremely poor… I seriously didn’t understand how it works…

[DanM]

Does my explanation here help?

Can anyone explain the ranged for loop?

Hi Elijah, I really struggled with this section but @DanM came along as usual and helped me understand it. I’ll try to break it down for you as best I can. Above the For Loop we’ve created the definition of bool IsIsogram(), made an if statement that will make sure single-letter entries are returned as Isograms, and set up a Map named “LetterSeen” that will assign boolean values to each character it is given. Now for the For Loop. for (auto Letter : Word) This line is creating a For L…

or here

Not Understanding all Conventions

As George said, that's a parameter. It allows you to pass things into the function. For example int square(int i) { return i*i; } int main() { int a = square(4); //a == 16 } 4 gets passed into the function, get's multiplied by itself and the result returned to the caller. No, this is creating a std::map (using the through the #define TMap std::map) which is an associative container, it maps unique keys to values and is sorted. So when you declare it using the angle brackets <> …

[Abdullah_Suleman]

It does, Thanks.

[Mr_Dink]

Bumping this post because this was a very valuable summary by @DanM

going into map blind I had a lot of questions about how the functions were working and it took this as well as reading TMap on unreal to get an understanding of it.