How to call original `console.log` that Chrome implements if it has been overriden by user's script?

Question

I'm debugging a website in Chrome's developer tools (F12) and the website's programmers have reimplemented console.log for their own purposes. In their code they've basically done this:

`console.log = function () { new code that has nothing to do with logging to console }`

When I call console.log it doesn't log to console.

My question is - how do I call the original console.log that the browser implements and not the overridden version?

I don't have access to website's code or its programmers.

You need to store a reference to the original `console.log` method before the override code is executed... then you can use that reference to call the original method — Arun P Johny, Oct 13 '15 at 12:01
why not just delete those lines of codes for the console log? — perseusl, Oct 13 '15 at 12:03
@perseusl It's not my code. I'm debugging an existing website via developer tools. — bodacydo, Oct 13 '15 at 12:05
You can use console.dir to effectively achieve the same result — sahbeewah, Oct 13 '15 at 12:05
P.S.: in chrome dev tools you can edit the scripts as well.. — Akshay Khandelwal, Oct 13 '15 at 12:05
Possible duplicate of [How do I restore console.log() function that has been disabled by a website?](http://stackoverflow.com/questions/20460685/how-do-i-restore-console-log-function-that-has-been-disabled-by-a-website) — Matteo Tassinari, Oct 13 '15 at 12:06
You can just try to use `console.info` instead in many cases. — Florian Wendelborn, Oct 13 '15 at 12:06
@MatteoTassinari The problem with that other question is that is related to Chrome; the answer does not work in Firefox, for example — Pablo Lozano, Oct 13 '15 at 12:24

kirie · Accepted Answer · 2015-10-13T12:07:10.607

2

Do you need the old implementation??

if not the most simple is to delete that old implementation

delete console.log;

It will automatically revert to default operation.

edited Oct 13 '15 at 12:07

answered Oct 13 '15 at 12:05

kirie

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It worked! I dont need the old implementation. Thanks so much! – bodacydo Oct 13 '15 at 12:06
Hey the OP is actually trying to get the old method.. not the overridden one.. So I do not see a point of this +1 vote here.. Who ever it was.. Please check – Akshay Khandelwal Oct 13 '15 at 12:06
This answer does not work in Firefox 40, delete console.log removes everything as there is no prototype log method where to fallback. Actually `console.__proto__.constructor===Object` – Pablo Lozano Oct 13 '15 at 12:21
@Pablo I'm using 40.0.3 and it works fine, if it doesn't work I think it is bugs in Firefox. – kirie Oct 14 '15 at 04:38

How to call original `console.log` that Chrome implements if it has been overriden by user's script?

1 Answers1