Attempting to streamline the process of verifying the truthfulness of an object key and subsequently adding it to a different

In the process of creating a form to interact with a remote API, I aim to construct a GET request query string depending on which checkboxes the user chooses.

Initially, I considered using a series of if/else statements to check whether the model object key is set to true or false, and then compile a clean array containing only the names of the object keys. However, I question if there is a more automated approach available?

One idea is to utilize angular.foreach, but I am uncertain about how to extract the object key names as values.

For instance:

function submit() {
  var pushData = [];
  angular.foreach(vm.export, function(item, index){
    if (item === true) {
      pushData.push(index);
    }
  })
}

Here is the object from which the data is being retrieved:

vm.export = {
  'servers': true,
  'apps': false,
  'users': true,
  'userID': 1234
}

How can I add the key names with TRUE values to the pushData array?

Answer №1

When utilizing a foreach loop, each item in the array has both an object/primitive and a key associated with it. In this case, your pushData variable is incorrectly getting "true" (the value of the item) as the key instead of the actual name.

var pushData = [];
angular.foreach(vm.export, function(item, key){
if (item === true) {
    pushData[key];
  }
});

Answer №2

Is there a more efficient way than using a for in loop?

See the working example

function submit(){
  var selectedData = [];
  for (var key in data) {
    if (data[key] === true) {
      selectedData.push(key);
    }
  }
  return selectedData;
}

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