String has no `match`

[adamwong246]

Perhaps I'm confused but without this method, does derw have the capacity to match regular expressions?

[eeue56]

Hi!

So, basically you can use methods on objects in Derw as you would in TypeScript. This means you can use something like:

aString: string
aString = 
    ""
 
someTest: boolean
someTest =
    let 
        match: any 
        match =
            aString.match "[a-z]*"
    in
        match == null

or do whatever you want with the match array.

If you were going to using it more often though, the way would be to create a kernel code wrapper around the regex functions to make it more like Derw (for example - not using nulls and return a Maybe instead). For more examples of kernel code, check out this repo - and the GitBook, where everything has examples of what code gets compiled to. Pull requests welcome!

Feel free to reach out to me on Twitter or Zulip if you have any other questions.