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kotlinlang

Hi! can someone enlighten me why this returns false?
```"hello world".matches(Regex("([A-Za-z])"))```

because your regex is expecting a single letter from A-z

Try using this website (or any similar) if you are new to regular expressions
<https://regexr.com/>

Yeah, `matches` tries to match the entire input, even if that's not really stated in the Kdoc. This returns true: `"hello world".matches(Regex("(.*[A-Za-z].*)"))`

```
Returns true if this char sequence matches the given regular expression.
```
I see how the choice of words might be confusing to some...

For the match you can use even simpler `"[A-z\s]*"`

<@U7WU0BVJ8> Please, do not cross-post your messages to different channels. Choose one.
And this <#C0B8M7BUY|android> channel is a bad choice for such generic questions

To add on, I believe there’s a method `contains` to just check if the regex matches any segment for the string. And if you are checking for letters only, you can do `Regex([A-Za-z]*)` (which wouldn’t match hello world due to the space)