httpObj = new XMLHttpRequest();
httpObj.open("get", "./jsondata.txt", true);
httpObj.onload = function(){
var myData = JSON.parse(this.responseText);
var txt = "";
for (var i=0; i<myData.item.length; i++){
txt = txt + myData.item[i].itemName + " " + myData.item[i].itemPrice+"円<br>";
}
document.getElementById("result").innerHTML = txt;
}
httpObj.send(null);
【JSONデータ：jsondata.txt】
{"item":[
{ "itemCode":91,
"itemName":"塩ラーメン",
"itemPrice":300},
{ "itemCode":94,
"itemName":"味噌ラーメン",
"itemPrice":290},
{ "itemCode":95,
"itemName":"豚骨ラーメン",
"itemPrice":320}
]
}