I was reading that AngularJS comes with a lite version of jQuery. However I keep hearing reference to people who talk about Angular and jQuery going together. I even checked out ng-grid and noticed that it says:
Angular Data Grid written in AngularJS and jQuery by the AngularUI Team
So if I do use Angular just when would I need jQuery and what does the version that comes as part of AngularJS not provide?
jQLite is a very stripped version on jQuery. jQLite is enough for angular to work. This is to remove any dependencies.
Yet, if you load jQuery before angular, then angular will use jQuery.
Most of the times, you do not need to use jQuery. Even so much that, for beginners, it is advised to leave out jQuery completely as there would be tendency to use jQuery when there is an easy / angular way. There has been so many examples on this (mostly showing and hiding element through jQuery when there is ngShow and ngHide directives).
Later on, when you start to write directives, you then may need to add jQuery.
ngGrid possible does so much things that which jqLite would not suffice. Thus, they used jQuery.
Documentation and features of jqLite: http://docs.angularjs.org/api/angular.element