Nolan LawsonJun 30, 2017

Today's teensy tiny #MastodonPerf improvement: making emoji replacement faster. This speeds up column switching by about ~50ms on a Nexus 5X: https://github.com/tootsuite/mastodon/pull/4019

TL;DR: regexes can be slow, especially when your regex contains every emoji shortcode ever (`ːsmileː`, `ːwinkː`, `ːman_cartwheeling_tone5ː`, etc.). Replacing it with a simple for-loop over the length of the string can be a big speedup!

Show threadNolan Lawson
In case you're scratching your head wondering why _those_ shortcodes aren't getting replaced, it's because I used the sneaky IPA triangular colon character: http://www.fileformat.info/info/unicode/char/02d0/index.htm
Jun 30, 2017 at 5:04pmWeb