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

# android

[jermainedilao]

Hi! can someone enlighten me why this returns false?

"hello world".matches(Regex("([A-Za-z])"))

[Lucas Ł]

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/

[robin]

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].*)"))

[Lucas Ł]

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]*"

[jermainedilao]

Right! 💡thanks guys 👍

[gildor]

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

[jermainedilao]

@gildor my bad. Noted!

[Allan Wang]

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)