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jQuery or javascript to find memory usage of page
...ormance.memory gives access to JavaScript memory usage data.
Recommended reading
Measuring page load speed with Navigation Timing
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:active pseudo-class doesn't work in mobile safari
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For any future readers, I've posted a demo here: http://jsbin.com/EjiWILe/3/. Check the functionality on your iOS device.
– mhulse
Dec 19 '13 at 20:58
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Deep copy of a dict in python
...e oversimplified example I gave. My keys are not numbers but objects. If I read the copy module documentation, I have to declare a __copy__()/__deepcopy__() method for the keys. Thank you very much for leading me there!
– Olivier Grégoire
Feb 24 '11 at 14:17
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Is “ ” a replacement of “ ”?
...d its actual value. The lookup table is called a DTD, by the way.
You can read more about character entity references in the offical W3C documents.
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Create PostgreSQL ROLE (user) if it doesn't exist
...t to create a ROLE in PostgreSQL 9.1, but without raising an error if it already exists?
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Removing multiple keys from a dictionary safely
... extra line for existence checking personally, and it's significantly more readable unless you already know about pop(). On the other hand if you were trying to do this in a comprehension or inline lambda this trick could be a big help. I'd also say that it's important, in my opinion, to meet peop...
Firebug says “No Javascript on this page”, even though JavaScript does exist on the page
...has a 'debugger' option. See this page for a discussion on the migration. Read all the posts dated 19 November for further information.
It seems to me that the option gives less functionality but Firebug per se is never going to be fixed for Firefox 50 and beyond
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How to merge specific files from Git branches
...ile.py, make the other changes go away.
git checkout -B wip branch2
git read-tree branch1
git checkout branch2 file.py
git commit -m'merging only file.py history from branch2 into branch1'
git checkout branch1
git merge wip
Merge will never even look at any other file. You might need to '-f' t...
How can I capture the result of var_dump to a string?
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also remove the tags for readability (if you just want the string), using strip_tags(), this will simply return the type and value.
– Anil
Oct 10 '13 at 9:31
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Is there any Rails function to check if a partial exists?
... print something if the partial is missing, though?
Edit 1: Oh, I fail at reading comprehension. You did say that you wanted to render something else. In that case, how about this?
<%= render :partial => "#{dynamic_partial}" rescue render :partial => 'partial_that_actually_exists' %>...