how to display value of javascript variables in chrome after javascript error

Asked Mar 30 '16 at 18:28

Active Mar 30 '16 at 18:40

Viewed 20 times

AT work I am working on a Perl/CGI script running under the Google Chrome browser that generates javascript code to dynamically update the displayed page.

Unfortunately my script stops (ie. it dies !!) with the following type of error

Uncaught TypeError: Cannot set property 'innerHTML' of null

the offending line is

document.getElementById(id).innerHTML = img;

How do I display the value of the javascript variable id with Google Chrome ?

I have done much searching on this topic and nothing has been helpful so far. I have been exploring the developer tools window but can't seem to find anything to display the value of a JS variable

edited Mar 30 '16 at 18:40

asked Mar 30 '16 at 18:28

B. Kimelman

1

This will likely also help: [Why does jQuery or a DOM method such as getElementById not find the element?](http://stackoverflow.com/q/14028959/218196) – Felix Kling Mar 30 '16 at 18:31
Make sure you have a look at all the answers on the linked duplicate - there's a lot of info in there. – James Thorpe Mar 30 '16 at 18:33
I have been looking everywhere and I am desperate ! How do I do this under Chrome ? – B. Kimelman Mar 30 '16 at 18:41
console.log(id) will print the values of id in chrome console – Nuthan Kumar Mar 30 '16 at 18:43
console.log(id) will do the trick! ;) Put this in your code and after that in execution time open chrome console to see the result. – Valter Júnior Mar 30 '16 at 18:55

how to display value of javascript variables in chrome after javascript error

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