Pushing a double array element to an array jQuery

Question

I have this array:

var array = {
item: 'value',
subArray: []
}

I would like to use a $.each function to loop through some data and push key:value values into the subArray. After pushing the array should look like this:

var array = {
item: 'value',
subArray: [item: 'value', item: 'anothervalue', ...]
}

I'm currently using this inside my $.each loop:

$('class').each(function() {
    array.subArray.push({ 'item': $(this).html() });
});

However, the current result is this:

var array = {
item: 'value',
subArray: [{item: 'value'}, {item: 'anothervalue'}, ...]
}

Any advice would be appreciated. Thanks!

Firstly, you have an object not an array. Secondly, javascript does not have associative arrays. The closest you can get is an array of objects, which is what your final example is. — Rory McCrossan
– Rory McCrossan, Commented Mar 14, 2016 at 20:22

tymeJV · Accepted Answer · 2016-03-14 20:21:39Z

2

Your desired result of subArray: [item: 'value', item: 'anothervalue', ...] is invalid. Arrays are not key/val pairs - that's an object. The result you are getting is the actual result you want.

[{item: 'value'}, {item: 'anothervalue'}, ...]

Is a perfectly valid array of objects. To add to the confusion of your code above:

var array = {
    item: 'value',
    subArray: []
}

The above is not an array - it's an object with two properties (item, and subArray)

answered Mar 14, 2016 at 20:21

tymeJV

105k14 gold badges165 silver badges158 bronze badges

Sign up to request clarification or add additional context in comments.

4 Comments

Frank Over a year ago

Thanks for your answer. The thing is that later on in the function I convert my array to JSON, and the JSON should look like this: subArray{"item": "value", "item": "anothervalue"} - any idea how to achieve this?

Rory McCrossan Over a year ago

@Frank that JSON structure is completely invalid as you have duplicate item keys within it.

Frank Over a year ago

@RoryMcCrossan: Thanks for letting me know, I'll have to change a few things :)

tymeJV Over a year ago

@Frank -- Why? You're converting to something that can't be converted to anything else - as it's invalid.

Collectives™ on Stack Overflow

Pushing a double array element to an array jQuery

1 Answer 1

4 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

4 Comments

Your Answer

Sign up or log in

Post as a guest

Related