Break input into objects (Javascript)

I'm here planning some changes on my custom sheet and a doubt came up. Is it possible to break an input into smaller variables with javascript? for example: let dice = 1d10+3 and break it down into "1", "d10", "+3" or "1","d","10","+","3" I found some stuff about regex I could possibly use, not sure if roll20 supports it thou. I'm here still taking babysteps with Java 

Regex is what I'd recommend for this. And yes, it is supported.

As Scott says, you can do this, but you have to bear in mind that if you are allowing humans to enter text, sometimes (often) you will end up with error. It is generally better to make sure players can only enter valid input, but creating, for example, separate input boxes for number of dice, die size, and modifier, and then in your sheet worker, construct them into the code you actually want to use.