regex to identify numeric and alphanumeric
"^[a-zA-Z0-9_]*$"
alphanumeric regex validation
validPattern = "^[a-zA-Z0-9]{10}$"; // alphanumeric exact 10 letters
this.projectForm = this.fb.group({
...
CIG: [null, [Validators.required, Validators.pattern(this.validPattern)],
regex except alphanumeric validation
string.replace(/[^a-zA-Z0-9_]+/g, '')
Copyright © 2021 Codeinu
Forgot your account's password or having trouble logging into your Account? Don't worry, we'll help you to get back your account. Enter your email address and we'll send you a recovery link to reset your password. If you are experiencing problems resetting your password contact us