Adding element to array Javascript

Question

I have a array that looks like the following:

enter image description here

I would like to add a new item, named "attributes", which is also an array. I can I do that?

Thanks.

This currently lacks information. What is the expected outcome after "adding an element"? Do you want to append an item, or simply assign some property to an array? Also, please don't just post images of code, write out the code instead. — Patrick
– Patrick, Commented Jun 10, 2015 at 10:54
After the "text" element. In the same level as "text", "key" and "enabled" I want one named "attributes" — Eva Dias
– Eva Dias, Commented Jun 10, 2015 at 10:54
That's simply arr[0].attributes = myArray. Use a for loop if you want to add attributes to each item. — Patrick
– Patrick, Commented Jun 10, 2015 at 10:55

AmmarCSE · Accepted Answer · 2015-06-10 10:58:05Z

1

var test = [{
  enabled: true,
  key: 'FIN28',
  text: 'Service Agreement'
}, {
  enabled: true,
  key: 'test',
  text: 'test test'
}];

for (var i = 0; i < test.length; i++) {
  test[i]['attributes'] = [];
}
console.log(test);

answered Jun 10, 2015 at 10:58

AmmarCSE

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5 Comments

AmmarCSE Over a year ago

@EvaDias, give me a more complete picture. Do you mean attibutes is an array of objects?

AmmarCSE Over a year ago

@EvaDias, oh so its an object of objects. one min :)

Eva Dias Over a year ago

Thank you @AmmarCSE ! My problem was that the name "attributes" was already in the variable to push into the oArray. I made a for and took the arrays inside to another variable, losing the "attributes:" part and it worked !

AmmarCSE Over a year ago

@EvaDias, ok but let me know if you need anymore help :)

Eva Dias Over a year ago

Right now it looks perfect @AmmarCSE :) but thanks for the help! :)

Remy Grandin · Accepted Answer · 2015-06-10 10:57:52Z

0

According to your comment, you want to add an attribute named "attribute" to the object inside your array. you can do it like this :

myarray[0].attribute = myvalue;

If you want to do it for every item of your array, you can do this :

for(var idx in myarray)
    myarray[idx].attribute = myvalue;

answered Jun 10, 2015 at 10:57

Remy Grandin

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