检查值是否在多维数组中

时间:2018-09-29 11:03:17

标签: javascript arrays

我有一个多维数组,我想检查其中是否有值。我已经尝试过Array.includes("value"),但没有任何反应。这是我的代码:

var database = [{
 "identifier": "test1",
 "extra": "information1"
},{
 "identifier": "test2",
 "extra": "information2"
},{
 "identifier": "test3",
 "extra": "information3"
}
]

如何测试"identifier"是否在数组中?
谢谢!

1 个答案:

答案 0 :(得分:-1)

hi,请参见下面的代码,该代码读取数据库的每个元素并打印每个元素的“标识符”值。

var database = [{
 "identifier": "test1",
 "extra": "information1"
},{
 "identifier": "test2",
 "extra": "information2"
},{
 "identifier": "test3",
 "extra": "information3"
}
]

$.each(database, function(index, value) {

if(value.identifier.length>0)
  console.log(value.identifier);
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>