How do i make a specific pattern for my html input

Question

I'm trying to make a custom pattern for my html input but have no idea how to do so!

The pattern I want: ABC-A0-01

So basically the first part has uppercase alphabets only, second part has uppercase with numeric values, and the last part is numeric only and is separated by a '-'

<input type="text" class="form-control txtsize" id="equi" placeholder="Insert equipment name e.g ABC-A0-12" data-ng-model="equipmentToAdd">

Answer 1

You could use the pattern attribute with a RegEx such as this: pattern="[AZ]{3}[-][AZ]{1}[0-9]{1}[-][0-9]{2}" .

Try inputting an invalid value, and hit submit. The browser will give an error with the message from title property.

 <form> <input type="text" class="form-control txtsize" id="equi" placeholder="Insert equipment name eg ABC-A0-12" data-ng-model="equipmentToAdd" pattern="[AZ]{3}[-][AZ]{1}[0-9]{1}[-][0-9]{2}" title="Insert equipment name eg ABC-A0-12"> <button type="submit">Submit</button> </form>