What is ng-repeat in AngularJS?

What is ng-repeat in AngularJS?

The ng-repeat directive in AngularJS As the directive name suggests, the ng-repeat instantiates a set of HTML or template for each item in the given collection. li Example ng-repeat table demo The collection can be an array or object.

What is the scope of ng-repeat directive?

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.

What is the Order of Keys returned in AngularJS?

The JavaScript specification does not define the order of keys returned for an object, so AngularJS relies on the order returned by the browser when running for key in myObj. 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.

How to handle duplicate entries in an array using angular tracking function?

By default, the tracking function in Angular does not allow duplicate entries in arrays. The reason is to maintain one to one mapping between DOM elements and collection items. See this example, where an array with duplicate entries is created. The array items are “displayed” by using the ng-repeat directive in the HTML table.

How do I repeat a specific element in ngrepeat?

Special repeat start and end points. 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 to track unique values in an array using ng-repeat directive?

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.


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