Casting a variable as the correct type when it is read in as a string

[Dan-C-Reed]

Say I have parsed a CSV and ended up with a load of strings. Some might look like this: "123". While this is a string, it should be an integer so I'd like to cast it as such. I'm looking at gleam/dynamic as I think this is where I'd find relevant functions. I see there are functions like int, float, etc., that check the type of a variable and returns the value if it is of that type, but in my example this would return a string, which isn't the desired result. I think I need a decoder, but I'm unclear of how to construct a decoder to convert a string to something else. How would I go about converting a string containing a int, float, or whatever into the correct data type?

Apologies for the newb question, but if someone could gently shove me in the right direction, I'd greatly appreciate it.

[jrstrunk]

You could use the std lib's float module! Just add import gleam/float then call float.parse("123.4"). You'll then have to handle the result type, I recommend reading that section of the tour and looking at the std lib result module on hex docs if you're not familiar :) you can use the parse function from the int std lib module as well

[Dan-C-Reed]

Argh — how did I miss that?! Thanks for your help, John.