encode and decode javascript objects to and from the string

Question

I want to use Javascript object as a key in the hashmap. In order to do this, I have to convert this Javascript object into the string. There also has to be a way to decode the object back from this string.

What is the best way of doing this?

So far I have found two ways of converting it. Using JQuery Params method and JSON.stringify.

Thanks.

JSON: developer.mozilla.org/en-US/docs/JSON. Assuming you are working with simple objects only. — Felix Kling
– Felix Kling, Commented Apr 10, 2014 at 0:04
^ I have listed my research and asked for the better option whats wrong with that? — sublime
– sublime, Commented Apr 10, 2014 at 1:14

Oriol · Accepted Answer · 2014-04-10 00:14:51Z

1

It seems JSON is what you need:

Object to string
```
JSON.stringify(obj);
```
String to object
```
JSON.parse(obj);
```

Or you could use ES6 Map in order to be able to directly use objects as keys, but currently browser support is small. Also note that different objects will be associated with different values, even if they look like the same:

var m = new Map(),
    obj1 = {}, obj2 = {};
m.set(obj1, 'foo');
m.set(obj2, 'bar');
m.get(obj1); // 'foo'
m.get(obj2); // 'bar'

edited Apr 10, 2014 at 0:14

answered Apr 10, 2014 at 0:08

Oriol

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