How to iterate through a json object? [duplicate]

Answer 1

perhaps you want

for(var i in data){
  for(var j in data[i]){
    alert(data[i][j]);
  }
}

Answer 2

There is no two dimensional data in Javascript, so what you have is nested objects, or a jagged array (array of arrays), or a combination (object with array properties, or array of objects). Just loop through the sub-items:

for (var key in data) {
  var item = data[key];
  for (var key2 in item) {
    alert(item[key2]);
  }
}

Answer 3

Try:

for (var key in data) {
   for (var key2 in data[key]){
      alert(data[key][key2]);
   }
}