Unreal TMap Basics - The minimum TMap knowledge you need - UE C++ Tutorial

The basics you need to know about Map to use it effectively in C++ and in Blueprint.
Covers the API and how the Map container works.

0:00 Writing a Map UProperty
0:35 Map include
0:40 Code - Adding to a map
1:05 Code - The danger of storing references - DANGLING REFERENCES!
2:01 Code - Other ways of adding to a map
2:40 Code - Checking size of a map
2:50 Code - Checking if a map has a value (Find function)
3:10 Code - Removing from a map
4:10 Code - Iterating a map with foreach for loop
4:36 Code - Converting map into a key value pair array
5:00 Code - Debugging map functions

8:20 Editor - Accessing the default values of the code TMap

9:39 Blueprint - Making a map only in blueprint, no code.
9:47 Blueprint - Getting code map in blueprint graph
10:00 Blueprint - Adding to the code map in event graph
10:20 Blueprint - Check if a key is in the map (contains node)
10:48 Blueprint - Finding the value for a given key in blueprint
11:10 Blueprint - Remove key/value from our code map in blueprint
11:28 Blueprint - Get an array of keys from the code map
11:35 Blueprint - Get an array of values from the code map
11:48 Blueprint - Debugging Blueprint nodes manipulating our code map

13:31 Outro

[mkonion]

The part starting at 1:05 has helped me immensely, I didn't know TMap have this danger. Thank you very much.

[aaronwe]

Lots of useful info here.

Do you have or know a good tutorial on sorting Tmaps?
Yes, I read the official Ue5 docs but they don't show/tell where to put the sort code.