从 json 字符串 javascript 中提取值
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Extract values from json string javascript
提问by wesley
I am using a multiselect element from select2 to enter multiple "tags". When I want to get the value from the element I get something like this (for tag1 en tag2 which I entered in the box):
我正在使用 select2 中的多选元素来输入多个“标签”。当我想从元素中获取值时，我会得到类似的信息（对于我在框中输入的 tag1 en tag2）：
[{"id":"tag1","text":"tag1"},{"id":"tag2","text":"tag2"}]
How do I get the result from text in an array something like this:
如何从数组中的文本中获取结果，如下所示：
[0] = "tag1"
[1] = "tag2"
And how do I reverse this process?
我该如何逆转这个过程？
采纳答案by Praveen
Try this simple iteration.
试试这个简单的迭代。
var obj = [{"id":"tag1","text":"tag1"},{"id":"tag2","text":"tag2"}] ;
for (var i =0; i< obj.length ;i++) {
console.log(obj[i].id);
}
回答by nullpotent
Here's another approach
这是另一种方法
[{"id":"tag1","text":"tag1"},{"id":"tag2","text":"tag2"}].map(function(el) {
return el.id;
});
回答by Suganthan Madhavan Pillai
var data = JSON.parse('[{"id":"tag1","text":"tag1"},{"id":"tag2","text":"tag2"}] ');
data[0].id
data[1].id
Try this will help you
试试这个会帮助你
