JSON字符串转对象问题。

Question

从接口返回了一段很奇葩的数据，想转换成数组使用，但是自己水平有限，尝试过JSON.parse和字符串的截取，但是最终未能解决该问题，希望诸位能帮忙解答此问题，谢谢！

返回的数据如下:

"[{"lng":121.580538,"lat":31.19932},{"lng":121.580919,"lat":31.199405},{"lng":121.58107,"lat":31.198751},{"lng":121.580683,"lat":31.198682}]"

期望的结果: 转换成数组

麻烦各位帮忙解决一下，谢谢！

Answer 1

如果是返回的数据直接是这样的话， 你可以尝试把第一个双引号和最后一个双引号去掉， 然后再解析。<script>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; var json_str = '"[{"lng":121.580538,"lat":31.19932},{"lng":121.580919,"lat":31.199405},{"lng":121.58107,"lat":31.198751},{"lng":121.580683,"lat":31.198682}]"';&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; // 取出两边双引号&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; json_str = json_str.replace(/(^\")|(\"*$)/g, "");;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; var json_obj = JSON.parse(json_str);&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; console.log(json_obj);&nbsp; &nbsp; &nbsp; &nbsp; </script>