These days, when practicing guitar, I needed a metronome. Whey you type “metronome” on Google Search, it actually brings out a functional metronome – however it has no keyboard shortcut keys. So I decided to write a simple metronome, with keyboard keys, from scratch, to suit my needs.
Knowing the imprecision of JavaScript’s setTimeout function, I implemented a timer that adjusts itself each call, thus having a fairly reliable precision.
The code is so simple I decided not to create a GitHub repository, so I’m just sharing the whole source code here: