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How to Iterate an Array Of Objects In Mustache?

3 minutes read

To iterate an array of objects in Mustache, you can use the {{#each}} block helper. Within the {{#each}} block, you can access the properties of each object using dot notation. For example, if you have an array called "users" containing objects with a "name" property, you can iterate over the array like this:


{{#each users}}


This will output a paragraph element for each object in the "users" array, displaying the value of the "name" property for each object. You can also nest {{#each}} blocks to iterate through nested arrays or objects within each object. Just make sure to close each {{#each}} block with {{/each}}.


What is the syntax for iterating over an array of objects in Mustache?

To iterate over an array of objects in Mustache, you can use the following syntax:

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{{#array}}
   <!-- code to display each object in the array goes here -->
{{/array}}


In this syntax, the # symbol is used to start the iteration block, and the name of the array is specified within the curly braces. Inside the iteration block, you can access the properties of each object in the array using dot notation.


What is the significance of the index parameter in Mustache looping?

The index parameter in Mustache looping is used to keep track of the current iteration number of a loop. This can be helpful for accessing specific elements in an array or performing certain actions based on the current iteration number. It provides a way to access the index of the current item being iterated over in a Mustache loop, allowing for more dynamic and customized templating.


How to prevent duplicate rendering of data in a Mustache loop?

One way to prevent duplicate rendering of data in a Mustache loop is by using a conditional statement inside the loop to check if the data has already been rendered. For example, you can create a variable outside the loop to store the rendered data, and then check this variable inside the loop before rendering the data again.


Here is an example of how to prevent duplicate rendering in a Mustache loop:

  1. Create a variable to store rendered data:
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var renderedData = '';


  1. Use a conditional statement inside the loop to check if the data has already been rendered:
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{{#data}}
  {{#unless renderedData.includes(this.id)}}
    // Render the data here
    {{this.id}} {{this.name}}

    // Add rendered data to the variable
    {{renderedData += this.id}}
  {{/unless}}
{{/data}}


By using the includes method (or any other method to check for duplicates), you can prevent duplicate rendering of data in a Mustache loop.


What is the purpose of iterating an array of objects in Mustache?

The purpose of iterating an array of objects in Mustache is to dynamically generate HTML code based on the data in the array. By looping through the array of objects, you can output different pieces of data for each object in the array, allowing you to create a flexible and reusable template that can adapt to different data structures. This makes it easier to display lists of items, such as products in an online store or posts in a blog, without having to manually write out the HTML code for each item.

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