Angular's ng-repeat allows you to iterate over a collection and

Question

Angular's ng-repeat allows you to iterate over a collection and

I have 4 different product categories that I want to display in 3 separate sections using AngularJS. Is there a way to repeat ng-repeat based on the product category?

Take a look at my plnkr: http://plnkr.co/edit/XdB2tv03RvYLrUsXFRbw?p=preview

var products = [

  {
    "name": "Item 1",
    "dimension": {
      "height": "4 in",
      "width": "3 in"
    },
    "category": "A"
  }, {
    "name": "Item 2",
    "dimension": {
      "height": "2 in",
      "width": "6 in"
    },
    "category": "B"
  }, {
    "name": "Item 3",
    "dimension": {
      "height": "2 in",
      "width": "3 in"
    },
    "category": "C"
  }, {
    "name": "Item 4",
    "dimension": {
      "height": "5 in",
      "width": "2 in"
    },
    "category": "D"
  }

];

javascript angularjs angularjs-ng-repeat

Answer 1

Answer №1

If you want to filter the output based on a specific category 'A', you can use the following code snippet:

ng-repeat="item in output.products | filter:{ category: 'A'}"

Note: It seems like many people searched for the same solution on StackOverflow. Make sure to improve your Google skills, OP!

Note 2: Upon revisiting the question, it appears that you might need a custom filter instead:

app.filter('category', function() {
  return function(items, categories) {
    if (!items || items.length === 0) {
      return [];
    }

    return items.filter(function(item) {
      return categories.indexOf(item.category) > -1;
    });
  };
});

To utilize this custom filter, use the following syntax:

ng-repeat="item in output.products | category:['A', 'B']"

Note 3: Keep in mind that using this custom filter on large arrays may impact performance. Consider pre-filtering the data into smaller subarrays if dealing with huge datasets.

Answer 2

If you want to filter the output based on a specific category 'A', you can use the following code snippet:

ng-repeat="item in output.products | filter:{ category: 'A'}"

Note: It seems like many people searched for the same solution on StackOverflow. Make sure to improve your Google skills, OP!

Note 2: Upon revisiting the question, it appears that you might need a custom filter instead:

app.filter('category', function() {
  return function(items, categories) {
    if (!items || items.length === 0) {
      return [];
    }

    return items.filter(function(item) {
      return categories.indexOf(item.category) > -1;
    });
  };
});

To utilize this custom filter, use the following syntax:

ng-repeat="item in output.products | category:['A', 'B']"

Note 3: Keep in mind that using this custom filter on large arrays may impact performance. Consider pre-filtering the data into smaller subarrays if dealing with huge datasets.

Answer 3

Answer №2

If you want to implement custom grouping in Angular, consider using the angular.filter module.

To create your own map function in the controller:

$scope.group = function(elem){
    if(elem.category == 'C' || elem.category=='D'){
       elem.category = 'C OR D' ;
       return elem;
    }
    else return elem;
}

In the HTML template, implement the following:

<ul ng-repeat="(key, value) in products | map: group | groupBy: 'category'">
  Group name: {{ key }}
  <li ng-repeat="product in value">
     Player: {{ product.name }} 
  </li>
</ul>

Please note that by using this method, you may lose some information about the category of the element when it is grouped as C or D. Another approach provided by LoremIpsum allows for better categorization without loss of data. However, with this solution, you have the flexibility to create custom groups as needed. Check out this JSFiddle example for reference.

Answer 4

If you want to implement custom grouping in Angular, consider using the angular.filter module.

To create your own map function in the controller:

$scope.group = function(elem){
    if(elem.category == 'C' || elem.category=='D'){
       elem.category = 'C OR D' ;
       return elem;
    }
    else return elem;
}

In the HTML template, implement the following:

<ul ng-repeat="(key, value) in products | map: group | groupBy: 'category'">
  Group name: {{ key }}
  <li ng-repeat="product in value">
     Player: {{ product.name }} 
  </li>
</ul>

Please note that by using this method, you may lose some information about the category of the element when it is grouped as C or D. Another approach provided by LoremIpsum allows for better categorization without loss of data. However, with this solution, you have the flexibility to create custom groups as needed. Check out this JSFiddle example for reference.

Answer 5

Answer №3

Here's an example:

<div class="" ng-repeat="item in output.products | filter: {category:'A'}">

. This code will repeat items with Category A. You can also implement custom filtering based on user-defined functions or different criteria.

Answer 6

Here's an example:

<div class="" ng-repeat="item in output.products | filter: {category:'A'}">

. This code will repeat items with Category A. You can also implement custom filtering based on user-defined functions or different criteria.

Answer 7

Answer №4

One option is to utilize ng.if in this scenario.

To see an example, visit http://example.com/sample

  <div class="" ng-repeat="item in output.products" ng-if='item.category =="A"'>

Answer 8

One option is to utilize ng.if in this scenario.

To see an example, visit http://example.com/sample

  <div class="" ng-repeat="item in output.products" ng-if='item.category =="A"'>

Angular's ng-repeat allows you to iterate over a collection and

Answer №1

Answer №2

Answer №3

Answer №4

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