So i wanna validating an student name input, that input can:
Example :
code here :
name: Yup.string()
.min(4, "Minimum 4 characters!")
.max(30, "Maximum 30 characters!")
.matches(/\b[A-Z][a-z]* [A-Z][a-z]*?\b/, "Only alphabets and numbers are allowed for this field!")
.required("Name is required!")
I would use the following regex pattern here in case insensitive mode:
^(?=.*[a-z])[a-z0-9 ]{4,30}$
This matches any input which contains at least one character, optional numbers and spaces, and has a length of between 4 and 30 characters.
var inputs = ["Valid", "21 Jump Street", "1234", "abc", "abcdeghijkabcdeghijkabcdeghijka"];
inputs.forEach(x => console.log(x + " => " + /^(?=.*[a-z])[a-z0-9 ]{4,30}$/i.test(x)));