How to convert a array containing object string to regular key object pair?

Question

I am trying to convert my uri to object value, as a success level i converted and splited in to array values with colon. But i am not able to onvert those to regular object. any one suggest me a good way. I am suing underscorejs with me.

here is my code :

var ar = ["id:1231", "currency:GBP"];

var outPut = _.map(ar, function(item){
    return '{' + item + '}';
})

console.log(outPut); //consoles as ["{id:1231}", "{currency:GBP}"]

how can i get result like this:

var object = {id:1231, currency:GBP}

is underscore has any in build method for this?

Jon · Accepted Answer · 2014-05-21 14:41:11Z

4

There are several ways you could go about this, and Underscore offers helpers for them.

One way would be to use _.reduce to incrementally add key/value pairs to an initially empty "result" object:

var obj = _.reduce(ar, function(result, item) {
    var keyAndValue = item.split(":");
    result[keyAndValue[0]] = keyAndValue[1];
    return result;
}, {});

Note that you can do the same without Underscore unless you have to support IE 8 or earlier.

edited May 21, 2014 at 14:41

answered May 21, 2014 at 13:31

Jon

439k85 gold badges756 silver badges820 bronze badges

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

2 Comments

3gwebtrain Over a year ago

works but not able to get proper result. here is the jsfiddle: jsfiddle.net/3gwebtrain/vaeRN/4 can you update here.

Jon Over a year ago

@3gwebtrain: Sorry, I got the order of result and item wrong. Edited the answer to reflect the correct order.

Holt · Accepted Answer · 2014-05-21 13:28:50Z

1

Without any third part library:

var output = {} ;
var ar = ["id:1231", "currency:GBP"];
ar.forEach(function (item) {
    var values = item.split(':') ;
    output[values[0]] = values[1] ;
}) ;

Output console.log(output):

Object {id: "1231", currency: "GBP"}

answered May 21, 2014 at 13:28

Holt

38.1k7 gold badges100 silver badges146 bronze badges

6 Comments

Karl-André Gagnon Over a year ago

Please, don't use for...in with regular array

Wottensprels Over a year ago

@Karl-AndréGagnon why so?

Jon Over a year ago

@Sprottenwels: If any properties are blindly set on Array.prototype (e.g. to install some kind of polyfill) then you would be iterating over those as well. You don't want that.

Wottensprels Over a year ago

@Jon Thank you. So it would be fine if i would do a hasOwnProperty check?

Holt Over a year ago

@Karl-AndréGagnon I didn't know about that, thx for your comment. I updated my answer. @Sprottenwels if you're already using underscore.js you should use @Jon answer.

|

PeterKA · Accepted Answer · 2014-05-21 15:19:32Z

0

Here is another version using jQuery:

var newObj = {};
$.each( ar, function( i, v ) {
    var kv = v.split( ":" );
    newObj[ kv[0] ] = kv[ 1 ];
 });
 // newObj = {id:"1231", currency:"GBP"}

edited May 21, 2014 at 15:19

answered May 21, 2014 at 13:43

PeterKA

24.7k5 gold badges28 silver badges52 bronze badges

Collectives™ on Stack Overflow

How to convert a array containing object string to regular key object pair?

3 Answers 3

2 Comments

6 Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

2 Comments

6 Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related