CODEWITHSUNDEEP
javascript
John Cooper
John Cooper

Reputation: 7641

array of object having an another key,value in another object

I have a situation where i have array of objects... 

array[0] = {key:value,key1:value}
array[1] = {key:value,key1:value}
array[2] = {key:value,key1:value}
array[3] = {key:value,key1:value}

Now i want to associate array[0] to another array of object {key,value} let's take newArray[0] 's {key,value}

My array[0] has its own set of key,value and also points to another object's key,value which it can change.

Update:

array[0] having its orginal key,value as well as another key,value from different object... so my array[0] object has two key,value...

Upvotes: 0

Views: 158

Answers (4)

QuentinUK
QuentinUK

Reputation: 3077

Do you want something like this?

var arrayA=[];
arrayA[0] = {key:1,keyB:"key3"}

var arrayB=[];
arrayB[0] = {key3:"Hello"}

arrayB[0][arrayA[0]["keyB"]]="Bye";
alert(arrayB[0].key3);

Upvotes: 1

RobG
RobG

Reputation: 147413

In an object, the "key" is just a named property, it is not a reference to anything. You can't change the name of a property, all you can do is create a property with a different name, assign the value of the first property to the second, then delete the first one, e.g.

function reNameProperty(obj, prop0, prop1) {
  obj[prop1] = obj[prop0];
  delete obj.prop0;
}

But there doesn't seem much point to that. What I think you want to do is:

var obj0 = {p: 'value};
var arr = [obj0, obj0];

So both arr[0] and arr[1] reference the same object. And if one changes:

var arr[0] = {q: 'different value');

then somehow arr[1] will also reference this new object.

You can only do that if you create a function to do the setting of the value of arr[0] and if it somehow knows which other array members should reference the same object.

Upvotes: 1

Ariel
Ariel

Reputation: 26753

Do you mean:

array[0] = [array[0], newArray[0]]

This will make an array of the objects. The old one and the new one.

It's very hard to understand what you are trying to do.

Upvotes: 1

Collin Price
Collin Price

Reputation: 5850

You can simply add a second key.

array[0].key2 = object2

If I have understood your question correctly.

Upvotes: 1

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