Common questions

How does the ng repeat Directive work in angular?

How does the ng repeat Directive work in angular?

The ng-repeat directive repeats a set of HTML, a given number of times. The set of HTML will be repeated once per item in a collection. The collection must be an array or an object. Note: Each instance of the repetition is given its own scope, which consist of the current item.

Which is an example of ngrepeat in AngularJS?

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. All different types of tracking functions, their syntax, and their support for duplicate items in collections can be found in the ngRepeat expression description.

Can you use order by and filter in AngularJS?

The built-in filters orderByand filterdo not work with objects, and will throw an error if used with one. If you are hitting any of these limitations, the recommended workaround is to convert your object into an array that is sorted into the order that you prefer before providing it to ngRepeat.

How to filter by single field in ng repeat?

ng-repeat :filter by single field. to filter these products by colour. The filter is working but if the product name / description etc contains the colour then the product remains after the filter is applied.

How is unit testing carried out in AngularJS?

AngularJS Unit Testing: Karma Jasmine Tutorial. One of the most brilliant features of Angular.JS is the Testing aspect. When the developers at Google developed AngularJS, they kept testing in mind and made sure that the entire AngularJS framework was testable. In AngularJS, testing is normally carried out using Karma (framework).

How does the it function work in AngularJS?

The ‘it’ function is used to give a name to the test. In our case, we are giving the name of our test as ‘Condition is true’. The name of the test needs to be meaningful. The combination of the ‘expect’ and ‘toBe’ keyword states on what is the expected and actual value of the test result.

Which is the best framework for testing AngularJS?

In AngularJS, testing is normally carried out using Karma (framework). Angular JS testing can be carried out without Karma, but the Karma framework has such a brilliant functionality for testing AngularJS code, that it makes sense to use this framework. In AngularJS, we can perform Unit Testing separately for controllers and directives.

How to remove duplicate entries from ng repeat?

Removing Duplicate Entries from ng-repeat in AngularJS Implementing our Test Controller. We’ll start off with a very simple angular controller that will have a list of item… Filtering Out Duplicates. Now that we’ve got some test data setup it’s time to write our filter. Modifying our Index

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-startand ng-repeat-endrespectively.