[removed] Remove duplicates of objects sharing same property value

Question

I have an array of objects that I would like to trim down based on a specific key:value pair. I want to create an array that includes only one object per this s

Answer 1

I don't think there's a built-in function in Angular, but it isn't hard to create one:

function removeDuplicates(originalArray, objKey) {
  var trimmedArray = [];
  var values = [];
  var value;

  for(var i = 0; i < originalArray.length; i++) {
    value = originalArray[i][objKey];

    if(values.indexOf(value) === -1) {
      trimmedArray.push(originalArray[i]);
      values.push(value);
    }
  }

  return trimmedArray;

}

Usage:

removeDuplicates(arrayWithDuplicates, 'size');

Returns:

[
    {
        "color": "red",
        "size": "small"
    },
    {
        "color": "blue",
        "size": "medium"
    },
    {
        "color": "red",
        "size": "large"
    }
]

And

removeDuplicates(arrayWithDuplicates, 'color');

Returns:

[
    {
        "color": "red",
        "size": "small"
    },
    {
        "color": "green",
        "size": "small"
    },
    {
        "color": "blue",
        "size": "medium"
    }
]