Pure Pipes in Angular I Angular Pipes | Angular 13+

Whenever we create a new pipe in Angular that pipe is a pure pipe. We can also set the pipe as pure or impure explicitely by setting pure property of pipe decorator to true or false respectively.
Angular executes a pure pipe only when it detects a pure change to the input value. A pure change is either
- a change to a primitive input value (String, Number, Boolean) or
- a changed object reference (Array, Date, Object)
A pure pipe is not executed if the input to the pipe is a reference type like object and only the property values of the object has change but not the reference.
So pure pipes are fast, but using them for filtering data is not a good idea because, the filtering may not work as expected if the source data is updated without a change to the object reference.
Let's understand pure pipe with some examples in this lecture.
DOWNLOAD SECTION SOURCE CODE HERE: drive.google.com/file/d/11f5j...

[@akashverma1640]

Finally got the definition cleared. Thank you so much !

[@swatib3892]

Crisp and clear explanation. Thank you so much

[@siddarthapal2792]

Great explanation. So many placed, people have made complicated the explanation. :) thanks a lot.

[@minakshimeshram9186]

Thank you so much....I was really struggling with what is pure and what is impure pipe.

[@abhishekjadhav9289]

Sir your teaching method is amazing. You explain every difficult thing is extremely easy and interesting way. Keep up the great work. Just one request, there are many people may be who are learning from linkedin learning or Udemy. If possible can you also start these tutorials on these platforms too...Just a suggestion.

[@procademy]

Hi Abhishek. Thank you very much for your kind words. I am not creating courses on udemy because my main moto is to provide free courses. And UA-cam is accessible to everyone. However in future I will try to upload these courses on udemy as well as free course.

[@abhishekjadhav9289]

@@procademy Thanks for reply. Yes you are right Sir. Actually on websites like Udemy or pluralsight there are ample of tutors but there are very few of them who teach like you.

[@lantan_creater]

Thank you so much for lesson =)

[@jakubzomerfeld2159]

Amazing learning path, thanks! Just missing the source code link in description :)

[@procademy]

Will include the source code once this section is complete.

[@prashanthnaidu11]

Can you please make a videos on unit testing karma and Jasmin