How to convert multidimensional array into java script object?

[drayarms]

I have a multidimensional array that I create dynamically like this

				var pairs = new Array();

				pairs.push({person:"joel",fruit:"peach"});

				pairs.push({person:"amina",fruit:"mangoe"});

				pairs.push({person:"peter",fruit:"mangoe"});

So basically, the array has several elements each of which has two child elements, the first having key "peoson" and the second having key "fruit" such that pairs[0].fruit would have value "peach" for example and pairs[2].person would be "peter"

 

 

Now I want to convert this array into a global javascript object so that I can access members of the array anywhere from my script.

 

The object should look something like so:

 

var NS.harvest = {

0:{person:"joel",fruit:"peach"},

1:{person:"amina",fruit:"mangoe"},

2:{person:"peter",fruit:"mangoe"}

}

So I tried this:

var NS.harvest = {};

for (var i = 0; i < pairs.length; ++i){

    if(pairs[i] !== undefined){

       NS.harvest[i] = pairs[i];

    }

}

return NS.harvest;

That didn't do the trick.  What should I do?  And what do I do if I need to convert the object back into the array?

 

[requinix]

Copying from pairs? Any reason you can't just

NS.harvest = pairs;

But are you executing this from a function? Either have the function return pairs, or forget the function and just access NS.harvest (after setting it) directly.

[OAFC_Rob]

I've just done something similar and from my understanding javascript multi-dimensional arrays become javascript objects. 

 

I have attached the code that I did, might be some help to you. This gave me an object / multi-dimensional array like PHP;

 

data =>

          array(1 =>

                           array( id => 1,

                                     code => some code,

                                     desc => description,

                                     surveyDate => 27/11/2013,

                                     building => array( buildingCode => array( total => 150.00,

                                                                                                       count => 5,

                                                                                                       buildingID => 7,

                                                                                                       buildingCode => buildingCode,

                                                                                                       building => building description

                                                                                                     )

                                                                  )

 

          )

);

                                    

Hope that helps

        var data = new Array();
        
        for (var i=0; i < surveys.length; i++) {
            
            var row = surveys.item(i);
            
            /** format any null data to something more useful */
            var buildingCode = (row.buildingCode != null) ? row.buildingCode : 
                                                            'Site Only'; 
                                                    
            var buildingID = (row.buildingID != null) ? row.buildingID : 0;
            
            
            /** if condition survey code is not the same as the previous then 
             *  reset the data for usage */
            if (row.code != preRowCode) {
                
                preRowCode = row.code;
                prevBuildingCode = '';
                var survey = new Array();
                survey['building'] = new Object();
                
            }
            
            /** if the building hasn't been set or is different then set the 
             *  prelimanary data */
            if (buildingCode != prevBuildingCode) {
                
                prevBuildingCode = buildingCode;
                
                survey.building[buildingCode] = {
                    total: row.totalCost,
                    count: 1,
                    buildingID: buildingID,
                    buildingCode: buildingCode,
                    building: row.buildingDesc
                };
                
            } else {
                
                survey.building[buildingCode].total += row.totalCost;
                survey.building[buildingCode].count += 1;
            }
            
            survey['id'] = row.id;
            survey['code'] = row.code;
            survey['siteCode'] = row.siteCode;
            survey['surveyDate'] = row.surveyDate;
            
            /** assign the survey array to the data array, js crazy way of doing
             *  a multi-dimensional array */
            data[row.id] = survey;
        }