Home/ Questions/Q 3340966
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-18T00:40:07+00:00

I have the following JSON string as part of a log line. cells :

  • 0

I have the following JSON string as part of a log line.

cells : {"Lac":"7824","CntryISO":"us","NetTyp":"GSM","NetOp":"310260","Cid":"11983"}

I want to filter out to the following format: {"Lac":"7824","Cid":"11983"}.

How can do this using regular expression ? in Javascript or Python ?
the keys are constant strings(Lac, CntryISO, …), but the value strings are varying.

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    To expand and explain @alex answer:

    JSON is a nested multi dimensional structure. Simply filtering the “string-ifiyed form of a Javascript object” (aka JSON) will work in very simple cases, but will rapidly fail when the structure is no longer flat or it starts to get complex with escaped fields, etc.

    At that point you will need proper parsing logic. This is nicely supplied by Javascript itself, to quote @alexes code:

    var myJson = {"Lac":"7824","CntryISO":"us","NetTyp":"GSM","NetOp":"310260","Cid":"11983"};

delete myJson.Lac;
delete myJson.cId;

    Or, if you want to use python, the json module will work just fine:
    http://docs.python.org/library/json.html

    Good luck! 🙂

    • 0