Combining Arrays in AngularJS: A Step-by-Step Guide

I have two arrays with dynamic values:

$scope.objectName = [{ Name: '' }];
$scope.propertiesElement = [{ Key: '', Value: '' }];

How can I concatenate these arrays to achieve the following result?

[{Name:''},{ Key: '', Value: '' }]

The Plunker link seems to be not functioning correctly at the moment.

When clicking on the "add row" button, it should only add rows for key and value text boxes, not for name. I want to be able to add multiple rows, and upon clicking "Submit", the output should display the key-value pairs as follows:

[{Name:''},{ Key: '', Value: '' },{ Key: '', Value: '' },{ Key: '', Value: '' }.....and so on]

Thank you!

javascriptangularjs

Answer №1

Building an array of mismatched objects may lead to complications. A safer approach would be:

$scope.objects = [{Name: '', Elements: []}];

This way, you can easily manage multiple objects with elements:

(Using underscore http://underscorejs.org/)

$scope.addElementToObject = function(objName, element){
   _.where($scope.mergedArray, {Name: objName}).Elements.push(element);
};

By following this method, you can add elements to the list for a specific object without repetitively evaluating the object in the elements array.

If you still wish to merge arrays of mismatched objects, you can do the following:

$scope.objectName = [{ Name: '' }];
$scope.propertiesElement = [{ Key: '', Value: '' }];
$scope.mergedArray = $scope.objectName.contact($scope.propertiesElement);

$scope.addElement = function(element){
   $scope.mergedArray.push(element);
};

In your click event code, you can then do:

$scope.addElement({ Key: 'someKey', Value: 'Some Value' });

I trust that this information proves helpful.

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