Code Review QA

[DaveHurley7]

Reviewing code that could be improved for efficiency

[DaveHurley7]

• Look for code that could be problematic

• Review the code to look for improvements

[mos2]

This issue can cover the item I was going to open for @DaveHurley7 to learn the Angular codebase, so I won't open a separate work-item for that.