how to run block of a function only if block of another function has been ran

What is the most efficient way to code so that one block of function A is ran only when another block of function B has been ran?

Much thanks!

[Geoff Hayes]

Terek - what is the relationship between function A and B? Will A always be called after B, or is it called from within B? Please clarify.

Answer 1

[Walter Roberson]

You could potentially create a Triggered Subsystem. However it might be more appropriate to use an if block.