Partial matching a string against a regex

Question

Suppose that I have this regular expression: /abcd/ Suppose that I wanna check the user input against that regex and disallow entering invalid characters in the input. When user

Answer 1

As many have stated there is no standard library, fortunately I have written a Javascript implementation that does exactly what you require. With some minor limitation it works for regular expressions supported by Javascript. see: incr-regex-package.

Further there is also a react component that uses this capability to provide some useful capabilities:

1. Check input as you type
2. Auto complete where possible
3. Make suggestions for possible input values

Demo of the capabilities Demo of use