Std.Map.tally

fn

This is a callable function.

What it does

How many times each value appears in an array.

The common reason to reach for a map at all, so it is here rather than left

for every caller to write again.

Read the signature

• The text after the name is the type checked by Pudu.
• Read arrows from left to right: inputs come first, and the final type is returned.
• & borrows a value for this call instead of moving or copying it.
• Names inside [ ] are type arguments, such as the item type held by a collection.