I am a web developer by day and was working on a feature that was supposed to create an input field that could only accept numbers. Super easy right?!
<input type="number" />
I’m demoing said feature to the client (after having tested this) and I’m bashing on the home row and nothing is printing. I type some numbers and they print. Then I grab some text and paste it in an bam, a single letter e. That’s weird. I try another word. Another letter e. Hmm. I tell the client we’ll look into it.
I shared this with a coworker and they were able to produce the same behavior. I then decided to look up the issue on the internet and of course this is a well known thing. I dig a little deeper and realize that the HTML spec allows for this behavior because of floating point numbers. For instance 2e5.
Anyways, that was a fun little journey.