How to iterate over a hash in mustache.js?

by scotty_walker , in category: Javascript , 6 months ago

How to iterate over a hash in mustache.js?

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1 answer

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by aubrey , 6 months ago

@scotty_walker 

In Mustache.js, it is not possible to directly iterate over a hash object using the standard Mustache syntax. However, you can achieve the desired functionality by creating a custom helper function.


Here is an example of how you can iterate over a hash in Mustache.js using a custom helper:

  1. Define a custom helper function that will iterate over the hash object:
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Mustache.registerHelper('iterateHash', function(hash, options) {
  var buffer = '';
  
  for (var key in hash) {
    if (hash.hasOwnProperty(key)) {
      buffer += options.fn({ key: key, value: hash[key] });
    }
  }
  
  return buffer;
});


  1. Use the custom helper in your Mustache template to iterate over the hash object:
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{{#iterateHash hash}}
  Key: {{key}}, Value: {{value}}
{{/iterateHash}}


In this example, the iterateHash helper function takes a hash object as a parameter and iterates over its keys. It then calls the block of code inside the {{#iterateHash}} and {{/iterateHash}} tags for each key in the hash, passing in the key and value as context variables.


By using this custom helper function, you can iterate over a hash object in Mustache.js.

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