Conversions

[polidobj]

How can we convert a string to a number? I see tryparse is not supported in java.

Also is there a way to convert an enum to an integer? Having to write switches does not scale well for larger enums.

Otherwise I've tried using an abstract class for the user of the library to provide the functionality. I've also done that for File IO. But I can see File IO as out of scope.

[pfusik]

I see tryparse is not supported in java.

For Java, it requires the if (!foo.TryParse(str)) syntax, e.g.

int result;
if (!result.TryParse("42"))
    Console.WriteLine("Cannot parse");
Console.WriteLine(result);

Also is there a way to convert an enum to an integer?

I'll add this.

I've also done that for File IO. But I can see File IO as out of scope.

The reason is that file I/O is different in a browser and on Android than on desktop OSes. I couldn't design a consistent API.
Unless you work with large files, passing byte arrays works well. For large files you need to expose a stream class.

[polidobj]

Also with enums, would it be possible to use an enum inside of an interpolated string? Otherwise converting the enum to int then using the int in the interpolated string would work.

[pfusik]

Also is there a way to convert an enum to an integer?

44d0d08 adds it, with syntax MyEnum.MyValue.ToInt(). It works for all target languages, but Swift requires the enum values to be explicitly assigned in their definition.

Also with enums, would it be possible to use an enum inside of an interpolated string? Otherwise converting the enum to int then using the int in the interpolated string would work.

Not sure what you mean.
The target languages differ in how they stringify enum values: most produce the int value, but C# produces symbol name. Therefore enums shouldn't be directly used in an interpolated string. Now you can use $"intValue={MyEnum.MyValue.ToInt()}".

[polidobj]

I see that C# will give the integer value of an enum if you use a :D format.

[pfusik]

I didn't know that, thanks! But .ToInt() is more readable IMHO.