Using the "if" statement in codeblock form

what is the meaning of below code Block

top line:

of “len” input is bigger(or equal) than/to 5 “elem” is returned else “null” is returned…

Bottom line:

Generally you should not use logic you do not understand, you should rather write your own graphs…

Thank you brother. is there any alternative way to write this

The ScopeIf+ node is from the Clockwork package. Mind the lacing being changed to “longest”

Top Line

Bottom Line

thank you for your help