How to convert a nested array in javascript to json structure

Question

In the following code i am trying to populate the javascript class,such that i get an object which i can stringify to json string.

 function classValue(valuearrs) { for (var i = 0; i < valuearrs.length; i++) { for (j = 0; j < valuearrs[i].length; j++) { this.id = valuearrs[i][j]; this.name = valuearrs[i][j]; this.somekey = valuearrs[i][j]; } } } function CreatenestedarrObj( valuearr) { this.Arrayparameters = [new classValue (valuearr)]; } function ArrayMethodCall() { var valuearr = new Array(); valuearr[0] = "myval1"; valuearr[1] = "myval2"; valuearr[2] = "myval3"; var valuearr1 = new Array(); valuearr1[0] = "myval11"; valuearr1[1] = "myval12"; valuearr1[2] = "myval13"; nestedarr = new Array(); nestedarr[0] = valuearr; nestedarr[1] = valuearr1; var x = new CreatenestedarrObj( nestedarr); var strobject = JSON.stringify(x); alert(strobject); } </script> </head> <body> MethodCall: <input type="button" value="Call Method" onclick=" ArrayMethodCall ()" />

After Stringifying the value expected is {ArrayParameters:[{myval1,myval2,myval3},{myval1,myval12,myval13}]}.The thing i can think i am missing is creating new object each time in the loop but how ? or i might be totally wrong.Any help will be much appreciated.

Samuel · Accepted Answer · 2014-04-30 02:14:54Z

try this

 function classValue(valuearrs) { var arr = [] for (var i = 0; i < valuearrs.length; i++) { for (j = 0; j < valuearrs[i].length; j++) { var temp = new Object(); temp.id = valuearrs[i][j]; temp.name = valuearrs[i][j]; temp.somekey = valuearrs[i][j]; arr[j] = temp; } } return arr; }

juvian · Accepted Answer · 2014-04-30 02:14:29Z

Change this:

function classValue(valuearrs) { var arr=[] for (var i = 0; i < valuearrs.length; i++) { arr[i]={}; for (j = 0; j < valuearrs[i].length; j++) { arr[i].id = valuearrs[i][j]; arr[i].name = valuearrs[i][j]; arr[i].somekey = valuearrs[i][j]; } } return arr; }

Mohammad Hossein Amri · Accepted Answer · 2014-04-30 02:33:20Z

i don't know why you need to split the nestedarr to id,name and somekey but if you don't need to, just return the valuearrs and you will be fine:

function classValue(valuearrs) { return valuearrs; } function CreatenestedarrObj( valuearr) { this.Arrayparameters = [new classValue (valuearr)]; } function ArrayMethodCall() { var valuearr = new Array(); valuearr[0] = "myval1"; valuearr[1] = "myval2"; valuearr[2] = "myval3"; var valuearr1 = new Array(); valuearr1[0] = "myval11"; valuearr1[1] = "myval12"; valuearr1[2] = "myval13"; nestedarr = new Array(); nestedarr[0] = valuearr; nestedarr[1] = valuearr1; var x = new CreatenestedarrObj( nestedarr); var strobject = JSON.stringify(x); console.info(strobject); }

the output is

{"Arrayparameters":[[["myval1","myval2","myval3"],["myval11","myval12","myval13"]]]}

or far better if you don't want it as Arrayparameters, you can use following code

var strobject = JSON.stringify(nestedarr);

and the output will be like this :

[["myval1","myval2","myval3"],["myval11","myval12","myval13"]]

Got the answer down.Syntactically In Json String array objects elements will be in {} .Thanks for replying.

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