js对象浅拷贝的问题

[凉小水]

var tempJson = {
  id: '',
  name: '',
}
var dataJson = {
  id: '1',
  name: '2',
  age: '2',
}
tempJson = dataJson;
console.log(tempJson);  // {id: "1", name: "2", age: "2"}

现在我想要的效果是tempJson中初始化的两个字段，只需要'id'和'name'，不要'age'
该如何做

[忽见一刘]

tempJson = JSON.parse(JSON.stringify(dataJSON)) delete tempJson.age

[天际的海浪]

for (var n in tempJson) {
	tempJson[n] = dataJson[n];
}