On Thursday, 3 March 2022 at 13:25:32 UTC, Stanislav Blinov wrote:
auto filtered = () {auto r = args[1].find!isNumber; // check if a string contains integers```
**When using ```find!isNumber```:** ``` 0123456789 @ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_ `abcdefghijklmnopqrstuvwxyz{|}~ ``` **When using ```find!isAlphaNum```:** ``` 0123456789 ```