CODEWITHSUNDEEP
javascriptjqueryarraysjson
Milind Anantwar
Milind Anantwar

Reputation: 82241

reverse the JSON Array stored in javascript variable

I have a json array stored in variable in format below:

{"info": 
[ {"typeid": "877", "recid": "10", "repeaterid": "0",  "pageid": "26966", "maxrecords": "1"},
  {"typeid": "877", "recid": "11", "repeaterid": "0",  "pageid": "26966", "maxrecords": "1"},
  {"typeid": "459", "recid": "3", "repeaterid": "0",  "pageid": "26966", "maxrecords": "1"},
  {"typeid": "459", "recid": "4", "repeaterid": "0",  "pageid": "26966", "maxrecords": "1"},
  {"typeid": "456", "recid": "5", "repeaterid": "0",  "pageid": "26966", "maxrecords": "1"},
  {"typeid": "456", "recid": "6", "repeaterid": "0",  "pageid": "26966", "maxrecords": "1"}
]}

I want to reverse the inner JSON array for info.Like this

{"info": 
[ {"typeid": "456", "recid": "6", "repeaterid": "0",  "pageid": "26966", "maxrecords": "1"},
  {"typeid": "456", "recid": "5", "repeaterid": "0",  "pageid": "26966", "maxrecords": "1"},
  {"typeid": "459", "recid": "4", "repeaterid": "0",  "pageid": "26966", "maxrecords": "1"},
  {"typeid": "459", "recid": "3", "repeaterid": "0",  "pageid": "26966", "maxrecords": "1"},
  {"typeid": "877", "recid": "11", "repeaterid": "0",  "pageid": "26966", "maxrecords": "1"},
  {"typeid": "877", "recid": "10", "repeaterid": "0",  "pageid": "26966", "maxrecords": "1"}
]}

How can i achieve this.

enter image description here

Upvotes: 8

Views: 37161

Answers (5)

Ratan Uday Kumar
Ratan Uday Kumar

Reputation: 6502

Successfully Working Converting JSON Array to Reverse JSON Array 101% Working

var ActualArray = [{
        "bag":'large',
        "color":'blue'
    },{
        "bag":'small',
        "color":'red'
    },{
        "bag":'medium',
        "color":'green'
    },{
        "bag":'large',
        "color":'pink'
    }]
    var ReverseArray = [];
    var length = ActualArray.length;
    for(var i = length-1;i>=0;i--){
        ReverseArray.push(ActualArray[i]);
    }
    console.log("actual array");
    console.log(JSON.stringify(ActualArray));
    console.log("reverse array");
    console.log(JSON.stringify(ReverseArray));

Your Log will be like below

actual array
[{"bag":"large","color":"blue"},{"bag":"small","color":"red"},{"bag":"medium","color":"green"},{"bag":"large","color":"pink"}]
reverse array
[{"bag":"large","color":"pink"},{"bag":"medium","color":"green"},{"bag":"small","color":"red"},{"bag":"large","color":"blue"}]

Upvotes: 0

Barmar
Barmar

Reputation: 781058

Use the array reverse method of Javascript:

var objAssetSelection = $.parseJSON(strAssetSelection);
objAssetSelection.info.reverse();
console.log(objAssetSelection);

Upvotes: 21

To delete profile
To delete profile

Reputation: 382

and simply (JQuery needed) :

function test() {
    var myArray = [1, 2, 3, 4];
    var myReversedArray = new Array();
    $(myArray).each(function (key) {
        myReversedArray.unshift(myArray[key]);
    });
    myArray = myReversedArray;
    $(myArray).each(function (key) {
        console.log(myArray[key]);
    });
}

Upvotes: 2

ojovirtual
ojovirtual

Reputation: 3362

var sorted=yourobject.info.sort(function(a,b){return a.typeid-b.typeid});

Ref: http://www.w3schools.com/jsref/jsref_sort.asp

Upvotes: 2

Mihai Matei
Mihai Matei

Reputation: 24276

Did you tried myObject.info.reverse() ?

More about Javascript Array Reverse

Upvotes: 6

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