For Each Loops in Angular JS

Question

I'm just starting to learn AngularJS and I need to be able to create lists with a title and then items within it.

Category 1
Item 1
Item 2
Etc

Category 2
Item 1
Item 2
Etc

How can I create a loop to get the category title, and then also get the items within that category?

In the code I would like to display it like this:

<h2>Category 1</h2>
<ul>
    <li>Item 1</li>
    <li>Item 2</li>
</ul>

I'm sorry I can't give more information, I don't know enough about the language to provide more. Thanks in advance!

Edit: I have tried:

$scope.categories = ['category 1', 'category 2']

<div ng-repeat="category in categories">
    {{category}}
</div>

With this I dont know how to go another layer deep for the items.

Also I'm trying to do something like this (I don't know if it will work):

var categories = {$category: $items}

angular.forEach(categories, function(category, items)) {
     //Do Something
}

@Soviut Editied with some things I've tried, unfortunately not too helpful still — Edward144
– Edward144, Commented Oct 16, 2016 at 22:29

Soviut · Accepted Answer · 2016-10-16 22:29:18Z

2

Assuming you had a data structure like this; An array of categories, each category containing a name attribute and an items array containing all items belonging to that category.

$scope.categories = [
    {
        name: "Category1",
        items: [
            {name: "Item1"},
            {name: "Item2"},
            {name: "Item3"}
            // ...more items
        ]
    }
    // ...more categories
];

You could represent this in your template using ng-repeat loops by looping over the categories array and inside each loop, perform a nested a loop over the items array in that category:

<div class="category" ng-repeat="category in categories">
  <h2>{{ category.name }}</h2>
  <ul class="items" ng-repeat="item in category.items">
    <li>{{ item.name }}</li>
  </ul>
</div>

answered Oct 16, 2016 at 22:29

Soviut

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Comments

bapin93 · Accepted Answer · 2016-10-16 22:35:00Z

0

Use ng-repeat. Here is an example:

Javascript:

var sections = {[
    {
        header: "Header1",
        content: ["one", "two", "three"]
    },
    {
        header: "Header2",
        content: ["one", "two", "three"]
    }
]};

HTML:

<div ng-repeat="section in sections">
    <h2>{{section.header}}</h2>   
    <ul>
        <li ng-repeat="item in section.content">
            "Item: " {{item}}
        </li>
    </ul>
</div>

Make sure sections is a variable in the $scope of the controller this HTML is part of.

answered Oct 16, 2016 at 22:35

bapin93

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