what is customPrint in "scope functions -> let"? It was never defined

[xdavidliu]

The example for "let" has "customPrint" which is never defined nor mentioned; only used. This is confusing for readers.

[xdavidliu]

oh, I just saw that there's a tiny "+" icon at the top of the example, and clicking it expands the definition of customPrint. That's really easy to miss, and the definition is like 3 lines long, so probably no need to hide it under a tiny "+" icon and increase confusion.