Custom Validation and Error Code | Reactive Forms | Angular 13+

We have learned how to validate a form control using angular's built-in validators. But it is also possible to create our own custom validators. Also remember that, every validator returns a validation error code whenever that validation fails on a form control.
In this lecture, i will show you how to create your own custom validators and how to use it. You will also learn how to return a validation error code from your custom validator. You are going to learn:
1. What is validation error code?
2. How to create custom validators?
3. How to use custom validators on a form control?
Let's learn about custom validators with a simple example.

[@manofsteelind]

Kindly make videos on Unit Testing using Jest or Jasmine.

[@gharchaaaswaad4658]

You are doing very good job thank u so much...this video helped me to understand nullequilisation operator..awesome keep it up

[@AbdulBasit-gd7gf]

please attach the code in description as well, it will be more helpful.

[@dimitriskidis]

Thank you for a brilliant video!

[@saramohammed9984]

Do you have a unit-testing course? and thank you again for your videos

[@narenk8077]

Your teaching explain very nice bro

[@narenk8077]

Why ur stopped angular course

[@logarithm0]

Thank you , very good

[@HM_Milan]

Crystal clear explanation thank you

[@ragucool9468]

How to make reusable component ? Kindly make video bro.... thanks advence . Videos simply super

[@leninnani5222]

Yes please make video on this, will be helpfull

[@shivajikoli461]

thanks sir

[@054vijayakumark4]

❤️❤️❤️❤️❤️❤️

[@arammah]

" ?." is optional chaining not nullish coalscing ; here for errors we use ?. (optional chaining).

[@procademy]

Yes! You are right.

[@umairjaved434]

this.noSpaceAllowed is not working in firstname and lastname