Resolved: Array getJSON by Index

Question:

I want to showing data like this:

Fire Forest : 60
Earthquake : 50

I’ve trying some method, but still get confused and showing not what I want. By the code below:

  $.getJSON(urlLink, function(data){
    var disasterData = '';

    $("#currentChartDisaster").empty();
    $("#currentChartDisaster").append("<h2>Jumlah Bencana Terjadi Bulan Ini</h2>");

    $.each(data,function(key, value){
      disasterData += '<h3>'+value+'</h3>';
    })
    $('#currentChartDisaster').append(disasterData);
  });

It’s only showing like this :

Earthquake, Fire Forest. 60, 50

I have JSON format like this:

{
    "disasterName":[
      "Fire Forest",
      "Earthquake"
    ],
    "disasterCount":[
      "60",
      "50"
    ]
}

Answer:

Given the format of your data where the name/count are in separate arrays, you can use a basic for loop to get the index for each disaster, to get the corresponding name/count based on that index

    data.disasterName[i] + " : " + data.disasterCount[i]

This assumes there’s the same number of disaster names as counts and that the associated values are in the same order – eg count[0] is for forest fires.

var data = {
  "disasterName": [
    "Fire Forest",
    "Earthquake"
  ],
  "disasterCount": [
    "60",
    "50"
  ]
};

var count = data.disasterName.length;

var html = '';
for (let i = 0; i < count; ++i) {
  html += "<h3>" + data.disasterName[i] + " : " + data.disasterCount[i] + "</h3>";
}
$("#output").append(html);

h3 { font-size: 1em; font-weight: normal; }

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div id='output'></div>

As you can change the format, you could make it more object-like, eg an array of:

    {
      "name": "Forest Fire",
      "count": 60
    },

then the js will be closer to your initial attempt as you don’t need to loop the index and can use a .forEach() or .map()

var data = {
  "disasters": [
    {
      "name": "Forest Fire",
      "count": 60
    },
    {
      "name": "Earthquake",
      "count": 50
    }
  ]
};


// forEach
//var html = '';
//data.disasters.forEach(disaster => {
//  html += "<h3>" + disaster.name + " : " + disaster.count + "</h3>";
//});
// or map

var html = data.disasters.map(disaster =>
  "<h3>" + disaster.name + " : " + disaster.count + "</h3>"
);


$("#output").append(html);

h3 { font-size: 1em; font-weight: normal; }

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div id='output'></div>

If you have better answer, please add a comment about this, thank you!

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