How does the ng repeat Directive work in HTML?
Note: Each instance of the repetition is given its own scope, which consist of the current item. If you have an collection of objects, the ng-repeat directive is perfect for making a HTML table, displaying one table row for each object, and one table data for each object property.
How to track an array by the Index in ng repeat?
As there are duplicate values so we have to track this array by $index. Using the ng-repeat directive we print the index of the array element and value on the index, Use ‘track by’ expression to specify unique keys. See the output.
How to print the name of a student in ng repeat?
By using ng-repeat directive we print the Name of the student and class of the student and orderBy the ng-repeat by class. See the output the student of the 3rd class shows on the first position of the list then student of 4th class and so on.
How to repeat a series of elements in AngularJS?
To repeat a series of elements instead of just one parent element, ngRepeat (as well as other ng directives) supports extending the range of the repeater by defining explicit start and end points by using ng-repeat-start and ng-repeat-end respectively.
How does the ngrepeat function work in AngularJS?
To minimize creation of DOM elements, ngRepeatuses a function to “keep track” of all items in the collection and their corresponding DOM elements. For example, if an item is added to the collection, ngRepeatwill know that all other items already have DOM elements, and will not re-render them.
Why does ngrepeat silently ignoreobject keys in AngularJS?
Browsers generally follow the strategy of providing keys in the order in which they were defined, although there are exceptions when keys are deleted and reinstated. See the MDN page on deletefor more info. ngRepeatwill silently ignoreobject keys starting with $, because it’s a prefix used by AngularJS for public ($) and private ($$) properties.