Compact Strings

EVM stores data in 32 byte 'buckets' or 'slots'.

Strings are arrays of UTF-8 characters, and arrays are basically a fixed length sequence of storage slots located next to each other. Therefore, like everything else we need to think in terms of storage buckets

This means that when we compile our contracts, we would prefer to use a single slot for the strings we use.

Each character in a string is a UTF-8 Encoded byte, meaning that your strings can be up to 32 characters in length if you do not use specially encoded characters like emojis to be contained in a single storage slot.

Here's a great resource to look up how many bytes a string takes up under UTF-8 Encoding. https://mothereff.in/byte-counter https://blog.hubspot.com/website/what-is-utf-8