Angular js 1.x custom order by with example

This video covers angular custom filter/order By function with example. I'm showing you how to sort priority in our desired format. Where priority is in string format and I don't want to sort it alphabetically. I want to sort according to my needs.
You can use such order by filter to filter your data, that are not directly available in your data object. This is perfect angular js custom order by filter example.

For e.g. In your data object you have student marks, and want to sort it by average or percentage. How can you do that, because average or percentage is not present in your data objects.

There this custom order by function/filter will be very helpful, it will sort data and you won't need some server side calculation for preparing your data.