How to add a set values for key to Javascript objects?

Question

I have following javascript variable:

this.Edges = {};

Then I did

this.Edges[path] = {edgeDst};

So Edges variable at this point is somehing like

Edges['232kb32i23'] = { edgeDst: 'AND_m_5' }

after that I when I did

this.Edges[path] = {edgeSrc};

It overwrote the value I had added with edgeDst. At this point Edges is like following:

Edges['232kb32i23'] = { edgeSrc: 'B_m_5' }

But I want to produce something like: Edges['232kb32i23'] = { edgeDst: 'AND_m_5', edgeSrc: 'B_m_5' }

Here I can't added edgeSrc and edgeDst simulataneously.

How will I achieve this?

How do you get both keys and values from doing = {edgeSrc}; , what's in edgeSrc etc ? — adeneo
– adeneo, Commented Nov 8, 2016 at 0:16
if you want to add both at the same time, this.Edges[path] = {edgeDst, edgeSrc}; — Jaromanda X
– Jaromanda X, Commented Nov 8, 2016 at 0:20
Okay then, if the answer below worked, I guess it wasn't property shorthand after all. — adeneo
– adeneo, Commented Nov 8, 2016 at 0:23

Sumner Evans · Accepted Answer · 2016-11-08 00:14:01Z

4

You can use the following:

var Edges = {};                  // these are just so that you can run the snippet
var path = '232kb32i23';

Edges[path] = {};                // set Edges[path] to a new object
Edges[path].edgeDst = 'AND_m_5'; // set the edgeDst property on Edges[path]
Edges[path].edgeSrc = 'B_m_5';   // set the edgeSrc property on Edges[path]

console.log(Edges);              // run the snippet to see the result
console.log(Edges['232kb32i23']);

You will have to modify the code to use this for your application, but I tried to make as succinct an example as possible.

answered Nov 8, 2016 at 0:14

Sumner Evans

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Comments

halfer · Accepted Answer · 2016-11-13 11:26:00Z

0

If you want to use the new ES6 syntactic sugar. It looks like you can do something like this:

this.Edges = {};

var path = 'the_path',
    edgeDst = 'edgeDst',
    edgeSrc = 'edgeSrc';

this.Edges[path] = { edgeDst, edgeSrc };

console.log(this.Edges) => {edgeDs:"AND_m_5",edgeSrc:"edgeSrc"}

Here is a link to a functioning example: https://jsfiddle.net/xwf3wadr/

edited Nov 13, 2016 at 11:26

halfer

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answered Nov 8, 2016 at 0:26

efreezy

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