JavaScript查找json值

  • Z时代
  • 2024-01-10
  • 分类：问答

我需要在国家（地区）的json列表中进行搜索。json就像：

[ 
{"name": "Afghanistan", "code": "AF"}, 
{"name": "Åland Islands", "code": "AX"}, 
{"name": "Albania", "code": "AL"}, 
{"name": "Algeria", "code": "DZ"}
]

我仅从数据库中获取代码，并会输出整个名称。因此，如果我得到“ AL”，我想从json“ Albania”中检索

回答：

var obj = [

{“name”: “Afghanistan”, “code”: “AF”},

{“name”: “Åland Islands”, “code”: “AX”},

{“name”: “Albania”, “code”: “AL”},

{“name”: “Algeria”, “code”: “DZ”}

];

// the code you're looking for
var needle = 'AL';
// iterate over each element in the array
for (var i = 0; i < obj.length; i++){
  // look for the entry with a matching `code` value
  if (obj[i].code == needle){
     // we found it
    // obj[i].name is the matched result
  }
}

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