Using pattern atribute in HTML5

Question

When using the input tag in a form and requesting a password, how can I make the password requirements such as using 1 upper, 1 number, 1 special character and such... I read about the pattern attribute, but I'm still scratching my head over how to write it properly. Any useful link or guide for that?

Answer 1

for pattern attribute or any other html css js functions/attributes w3schools is (in my opinion) the best to help you
https://www.w3schools.com/tags/att_input_pattern.asp

Answer 2

great, this actually helped, Thank you Roel