How do I incrementally build and tear down a JavaScript object?

Question

I need a user to be able to perform these actions:

Click an "Add" button. This will add a JavaScript object to either an array, or another JavaScript object.
Click a dynamic "Remove" button. This will remove the JavaScript object from the array, or object, whose ID matches the button click.
Submit the complete array, or object, of desired objects server-side for processing.

Using an array, am I able to get a handle via ID on a specific element and remove it with a "pop"-like function? If not, am I able to do so using a JavaScript object?

This question is related to this post, but there isn't much context in the original to answer my question. Thanks!

By the way, there's no such thing as a "JSON object"; you mean a Javascript object. JSON is just a format used to serialize an object to a string. — SLaks
– SLaks, Commented Nov 11, 2009 at 22:32
Thank you for the clarification. I have edited the post based on all of your comments and have voted you both up for getting me on the right track and using the right terminology. — Matt Norris
– Matt Norris, Commented Nov 11, 2009 at 22:56

SLaks · Accepted Answer · 2009-11-11 22:31:16Z

4

You can append an element to an array using the push method, like this:

var someArray = [];    //Start with an empty array

//Later,
someArray.push({ name: 'value' });

answered Nov 11, 2009 at 22:31

SLaks

891k182 gold badges1.9k silver badges2k bronze badges

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

Comments

ChaosPandion · Accepted Answer · 2009-11-11 23:03:52Z

1

It may actually be better to use an object rather than an array. This will allow you to name each object you send back to the server.

var dataObject = {};

function addData(name, data1, data2, data3) {
    dataObject[name] = {
        data1: data1,
        data2: data2,
        data3: data3        
    };
}

function removeData(name) {
    delete dataObject[name];
}

edited Nov 11, 2009 at 23:03

answered Nov 11, 2009 at 22:38

ChaosPandion

78.4k18 gold badges122 silver badges159 bronze badges

2 Comments

SLaks Over a year ago

That depends on what he's doing.

ChaosPandion Over a year ago

"may" being the key word in my answer.

Collectives™ on Stack Overflow

How do I incrementally build and tear down a JavaScript object?

2 Answers 2

Comments

2 Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

2 Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related