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How to Show Nested Array Of Json In Html In Ember.js?

6 minutes read

To display a nested array of JSON data in HTML using Ember.js, you can use the Ember.js template engine to access and render the nested arrays. You can create nested loops in your template to iterate over the nested arrays and display the data accordingly. Use the {{#each}} and {{#with}} helpers to access and manipulate the nested arrays and objects within your JSON data. By iterating over the nested arrays and objects, you can display the desired information and structure the data in the way you want it to appear on the HTML page.


How to loop through nested JSON array in Ember.js?

To loop through a nested JSON array in Ember.js, you can use the each helper provided by Ember's Handlebars template system. Here's an example of how you can loop through a nested JSON array in Ember.js:


Assuming you have a nested JSON array like this:

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{
  "users": [
    {
      "name": "John Doe",
      "pets": [
        {
          "name": "Fluffy",
          "type": "dog"
        },
        {
          "name": "Whiskers",
          "type": "cat"
        }
      ]
    },
    {
      "name": "Jane Smith",
      "pets": [
        {
          "name": "Buddy",
          "type": "dog"
        }
      ]
    }
  ]
}


You can loop through the users array and then loop through the pets array for each user in your Ember template like this:

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{{#each users as |user|}}
  <div>{{user.name}}</div>
  <ul>
    {{#each user.pets as |pet|}}
      <li>{{pet.name}} - {{pet.type}}</li>
    {{/each}}
  </ul>
{{/each}}


This template code will loop through each user in the users array and display their name. For each user, it will then loop through the pets array and display the name and type of each pet.


How to render nested JSON data in Ember.js component?

To render nested JSON data in an Ember.js component, you can follow these steps:

  1. Define a model or use a service to fetch the nested JSON data.
  2. Create a component template (.hbs file) where you want to render the nested JSON data.
  3. Use the {{#each}} helper to iterate over the nested arrays or objects in the JSON data.
  4. Access the nested properties using dot notation or [] to display the data in the component template.


For example, if you have a nested JSON data structure like this:

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{
  "name": "John Doe",
  "age": 30,
  "address": {
    "street": "123 Main St",
    "city": "New York",
    "zipcode": "10001"
  }
}


You can render this data in an Ember.js component like this:

  1. Define the model in your route or use a service to fetch the data:
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import Route from '@ember/routing/route';

export default Route.extend({
  model() {
    return {
      "name": "John Doe",
      "age": 30,
      "address": {
        "street": "123 Main St",
        "city": "New York",
        "zipcode": "10001"
      }
    };
  }
});


  1. Create a component template to display the nested JSON data:
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<h1>{{model.name}}</h1>
<p>Age: {{model.age}}</p>
<p>Address: {{model.address.street}}, {{model.address.city}}, {{model.address.zipcode}}</p>


  1. Use the component in your template or route file to render the nested JSON data:
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<MyComponent @model={{this.model}} />


By following these steps, you can render nested JSON data in an Ember.js component.


How to display nested array of JSON in HTML in Ember.js using helper functions?

In Ember.js, you can use template helper functions to display nested arrays of JSON in HTML. Here's an example of how you can achieve this:

  1. Define a helper function in your Ember.js application. This helper function will take in the nested array as a parameter and return the formatted HTML string.
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// app/helpers/display-nested-array.js
import { helper } from '@ember/component/helper';

export function displayNestedArray([nestedArray]) {
  let htmlString = '<ul>';

  nestedArray.forEach(item => {
    htmlString += '<li>' + item.name + '</li>';
    if (item.children) {
      htmlString += '<ul>';
      item.children.forEach(childItem => {
        htmlString += '<li>' + childItem.name + '</li>';
      });
      htmlString += '</ul>';
    }
  });

  htmlString += '</ul>';
  return htmlString;
}

export default helper(displayNestedArray);


  1. Use the helper function in your Ember template to display the nested array of JSON.
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{{display-nested-array model}}


In this example, model is the nested array of JSON that you want to display. The helper function takes this array as input, formats it into an HTML string, and returns it for display in the template.

  1. Make sure to import the helper function in the template where you want to display the nested array.
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// app/templates/my-template.hbs
{{display-nested-array model}}


By using helper functions in Ember.js, you can easily format and display nested arrays of JSON in your HTML templates. This can be useful for displaying hierarchical data structures in a clear and organized way.


How to format nested JSON array in Ember.js?

In Ember.js, you can format nested JSON arrays using the Ember Data library. This library provides a way to define models and relationships between them, allowing you to easily work with nested data structures.


To format a nested JSON array, you'll need to define your models using Ember Data's Model class. For example, if you have a Post model that has many Comment models, you can define these models as follows:

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// models/post.js
import Model, { hasMany } from '@ember-data/model';

export default class PostModel extends Model {
  @hasMany('comment') comments;
}

// models/comment.js
import Model from '@ember-data/model';

export default class CommentModel extends Model {
  
}


Then, when you fetch data from your API, you can use Ember Data's built-in normalize and serializer functions to format the nested JSON array into the appropriate format for your models. For example:

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// routes/posts.js
import Route from '@ember/routing/route';

export default class PostsRoute extends Route {
  async model() {
    let response = await fetch('https://api.example.com/posts');
    let data = await response.json();

    return this.store.normalize('post', data);
  }
}


This will format the nested JSON array into the appropriate format for your Post model, including any nested relationships you have defined.


Overall, Ember Data makes it easy to work with nested JSON arrays in Ember.js by providing a straightforward way to define models, relationships, and serialize/deserialize data.


What is the proper syntax to extract nested JSON array elements in Ember.js?

To extract nested JSON array elements in Ember.js, you can use the get method along with dot notation to access the nested properties of the JSON object.


For example, if you have a nested JSON object like this:

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{
  "parent": {
    "children": [
      { "name": "Alice" },
      { "name": "Bob" },
      { "name": "Charlie" }
    ]
  }
}


You can extract the children array elements using the following syntax:

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let parent = this.get('model.parent');
let children = parent.children;


You can then iterate over the children array and access individual properties like name using dot notation:

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children.forEach(child => {
  console.log(child.name);
});


This syntax allows you to access the nested JSON array elements in Ember.js.


How to display nested JSON array inside HTML tags in Ember.js?

To display a nested JSON array inside HTML tags in Ember.js, you can use the Handlebars templating engine that comes built-in with Ember.js.


Here is an example of how you can achieve this:

  1. Assuming you have a JSON array like this:
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{
  "name": "John",
  "friends": [
    {
      "name": "Alice",
      "age": 30
    },
    {
      "name": "Bob",
      "age": 25
    }
  ]
}


  1. In your Ember.js component template (typically a .hbs file), you can iterate over the nested friends array using the {{#each}} helper:
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<div>
  <h1>{{data.name}}'s Friends</h1>
  <ul>
    {{#each data.friends as |friend|}}
      <li>{{friend.name}}, Age: {{friend.age}}</li>
    {{/each}}
  </ul>
</div>


  1. In your Ember component's corresponding JavaScript file (a .js file), you can define the data property to hold your JSON array:
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import Component from '@glimmer/component';

export default class NestedJsonComponent extends Component {
  data = {
    name: 'John',
    friends: [
      {
        name: 'Alice',
        age: 30
      },
      {
        name: 'Bob',
        age: 25
      }
    ]
  };
}


This way, when you render the Ember component in your HTML, it will display a list of name and age of friends belonging to the name provided in the data.

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