Consider storing repeated script blocks in variables, instead of using functions.

I was going to use this to save some characters in my Rock, Paper, Scissors implementation before I realized that re-writing the function as a variable made even the variable unnecessary. This could still be useful for other scripts though, where you're actually running the same code multiple times.

function Hi{echo 'Hello, World!'};Hi

vs.

$Hi={echo 'Hello, World!'};&$Hi

Consider storing repeated script blocks in variables, instead of using functions.

I was going to use this to save some characters in my Rock, Paper, Scissors implementation before I realized that re-writing the function as a variable made even the variable unnecessary. This could still be useful for other scripts though, where you're actually running the same code multiple times.

function Hi{echo 'Hello, World!'};Hi

vs.

$Hi={echo 'Hello, World!'};&$Hi