I am trying to add a pattern to a mwc-textfield input to filter a file name. My pattern seems to be valid js regex and seems to work on a html input but does not as a pattern on a mwc-textfield. I have two problems:
|
or givesPattern attribute value ^[^|/:*"<>]+$ is not a valid regular expression: ect...
but\|
works which confuses me\
never actually seems to match no matter what I try.
Example: https://codesandbox.io/p/sandbox/fervent-field-jjpvjz
Regex: ^[^|\/:*"<>]+$
Can anyone explain this weirdness or what I’m doing wrong?
Thanks!