How to Fetch Json In Mustache Template?

To fetch JSON in a Mustache template, you can use JavaScript to make an AJAX request to a server or API that returns the JSON data. Once you receive the JSON data, you can parse it and pass it to your Mustache template to render the data dynamically on your webpage. You can use libraries like jQuery or fetch API to make the AJAX request and handle the JSON data. By integrating the JSON data into your Mustache template, you can create dynamic and interactive webpages that display real-time information to users.

What is the best practice for caching JSON data in a Mustache template?

One common approach for caching JSON data in a Mustache template is to store the JSON data in a variable within the template itself. This way, the data can be retrieved and rendered multiple times without having to make repeated API calls.

Here's an example of how you can store JSON data in a variable within a Mustache template:

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<script id="template" type="text/template">
  {{#cachedData}}
    <div>{{name}}</div>
    <div>{{age}}</div>
  {{/cachedData}}
</script>

<script>
  var template = document.getElementById('template').innerHTML;
  var jsonData = {
    name: 'John Doe',
    age: 30
  };

  var renderedTemplate = Mustache.render(template, { cachedData: jsonData });
  document.body.innerHTML = renderedTemplate;
</script>

In this example, the JSON data { name: 'John Doe', age: 30 } is stored in a variable jsonData. The Mustache template then renders this data using the {{#cachedData}} tag. This way, the JSON data is cached within the template itself and can be rendered multiple times without having to make repeated API calls.

Another approach is to cache the JSON data in the client-side using local storage or session storage. This way, the data can be retrieved and used across different pages of the application without making repeated API calls. However, this approach requires extra handling to ensure the cached data is up-to-date and properly managed.

How to loop through JSON data in a Mustache template?

To loop through JSON data in a Mustache template, you can use the Mustache syntax for looping over arrays, which is {{#array}} ... {{/array}}. Here's an example to demonstrate how to loop through JSON data in a Mustache template:

1. Assume you have the following JSON data:

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{
  "users": [
    {
      "name": "Alice",
      "age": 25
    },
    {
      "name": "Bob",
      "age": 30
    }
  ]
}

1. Use the following Mustache template to loop through the "users" array in the JSON data:

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<ul>
  {{#users}}
    <li>{{name}} - {{age}}</li>
  {{/users}}
</ul>

1. Render the template with the JSON data:

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var template = Handlebars.compile("<ul>{{#users}}<li>{{name}} - {{age}}</li>{{/users}}</ul>");
var html = template(data);

1. The output will be:

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<ul>
  <li>Alice - 25</li>
  <li>Bob - 30</li>
</ul>

This is how you can loop through JSON data in a Mustache template using the Mustache syntax for looping over arrays.

What is the best way to include JSON in a Mustache template?

To include JSON data in a Mustache template, you can pass the JSON data as a context object when rendering the template.

Here is an example of how you can include JSON data in a Mustache template using JavaScript:

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const Mustache = require('mustache');

const template = `
  <h1>{{title}}</h1>
  <p>{{#items}}
    <span>{{name}}</span>
  {{/items}}</p>
`;

const data = {
  title: 'Example JSON Data',
  items: [
    { name: 'Item 1' },
    { name: 'Item 2' },
  ]
};

const output = Mustache.render(template, data);

console.log(output);

In this example, the data object includes a title key and an items key, where items is an array of objects. The Mustache template includes tags like {{title}} and {{#items}} to access and iterate over this JSON data when rendering the template.