Using ng-repeat in AngularJS for Iteration

Learn how to use the ng-repeat directive in AngularJS to iterate over arrays and objects in your templates. Harness the power of AngularJS's data-binding capabilities for efficient UI rendering.
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AngularJS, known for its powerful data-binding capabilities, provides a straightforward way to iterate over arrays and objects within your templates using the ng-repeat directive. This directive allows you to loop through collections and render elements dynamically based on the data. Here's how you can use ng-repeat effectively in AngularJS:

Iterating Over Arrays

To iterate over an array in AngularJS using ng-repeat, follow these steps:

HTML Template:
Use the ng-repeat directive on an HTML element where you want to repeat a portion of the markup for each item in the array. For example:

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Controller:
In your AngularJS controller, define the array (items in this case) and attach it to the scope:

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Output:
When the above code is executed, AngularJS will repeat the <li> element for each item in the items array, displaying each fruit name.

Iterating Over Objects

To iterate over an object's properties in AngularJS, use a similar approach:

HTML Template:
Use ng-repeat with (key, value) syntax to iterate over object properties:

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Controller:
Define an object (obj in this case) within the controller and attach it to the scope:

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Output:
AngularJS will iterate over the object properties (name, age, city) and display them in the <li> elements as key-value pairs.

Using Filters with ng-repeat

You can also apply filters within ng-repeat to refine the iteration. For example, to filter out items based on a condition:

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In this case, only items containing the letter 'e' will be displayed.

By leveraging ng-repeat in AngularJS, you can dynamically render content based on arrays or objects, making your UI more responsive and data-driven.