Don Viegues Don Viegues - 3 years ago 72
Javascript Question

Create table from JSON object in JavaScript

I am trying to create an HTML table with information I use to draw a plot.
I don't want to query the database twice, and I want to create the chart and a table with the information.
This is what I get from the server and that it gets charted:

var data = {
"selector":"#charttotalday",
"jsondata":[
{
"label":"Client1",
"data":[
[1382670000000,110157],
[1382756400000,199055],
[1382842800000,362996],
[1382929200000,302],
[1383015600000,169],
[1383102000000,88],
[1383188400000,49]
],
"points":{
"fillColor":"#88bbc8"
}
},
{
"label":"Client2",
"data":[
[1382670000000,58611],
[1382756400000,112268],
[1382842800000,193060],
[1382929200000,115],
[1383015600000,45],
[1383102000000,65],
[1383188400000,18]
],
"points":{
"fillColor":"#ed7a53"
}
},
{
"label":"Client3",
"data":[
[1382670000000,65534],
[1382756400000,118362],
[1382842800000,200058],
[1382929200000,123],
[1383015600000,65],
[1383102000000,53],
[1383188400000,26]
],
"points":{
"fillColor":"#9FC569"
}
}
]
};


Because of the way the information is organized, I can not use $.each to loop over it and create a table of the format:

Client1 Client2 Client3
1382670000000 | 10157 | 58611 | 65534 |
1382756400000 | 99055 | 12268 | 18362 |
1382842800000 | 62996 | 93060 | 10058 |
1382929200000 | 302 | 115 | 123 |
1383015600000 | 169 | 45 | 65 |
1383102000000 | 88 | 65 | 53 |
1383188400000 | 49 | 18 | 26 |


I am thinking that the best way would be to read the object and create a new one with the structure that I need, that can be used with $.each.

I have tried with this:

$.each(data.jsondata, function(key, value) {
thead += '<th>' + value.label + '</th>';
tableData[value.label] = new Object();
$.each(value.data, function(key1, value1) {
$.each(value1, function(key2, value2) {
if(key2 == 0) {
//here I have the time line, axis Y
index = value2;
}
if(key2 == 1) {
//here I have the values for the table
tableData[value.label][index] = value2;
}
});
});
});

thead += '</tr>';


But this only creates a more simple element with the information that I need, but still cant turn into what I need.

Can someone please point me in the right direction?

Answer Source

This will map your data to table:

 var headers=[ ""], rows={}
  $.each(data.jsondata,function(clientIdx,item){
      headers.push(item.label );
      $.each( item.data,function(i,arr){
        if( !rows[arr[0]]){
         rows[arr[0]]=[];
        }
        rows[arr[0]][clientIdx]=arr[1];
      })
  })


  var rowHtml='<tr><th>'+headers.join('</th><th>')+'</th></tr>';
  $.each(rows,function(key, arr){
    rowHtml+='<tr><td>'+key+'</td>';
    rowHtml +='<td>'+arr.join('</td><td>')+'</td></tr>';

  })

  $('#table').html(rowHtml);

DEMO

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