javascript - 使用正则表达式从字符串中提取子字符串

Question

有人可以解释如何使用正则表达式从下面的数据中提取结果吗

信息：AppId=myApp-CompType=logger-CompId=myCompID：Level=INFO-Message={"sourceId":"Data","sourceType":"info","timestamps":{"original":"1543849385073", "uiPublish":"1543849385073"},"correlationId":"1543849385073_2272_38","object":{"old":{"mystate":"complete","state":"item"},"new":{" mystate":"complete","state":"myitem"}},"timestamp":"1543849385073"}

预期结果

{"old":{"mystate":"complete","state":"item"},"new":{"mystate":"complete","state":"myitem"}}

标签： javascriptregex

Answer 1

像这样？{"old基本上提取以和 until开头的任何内容}}。

{"old.+}}

正则表达式演示。