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Why does C++ need a separate header file?
...ile with the same functions as in the .cpp file. It makes creating classes and refactoring them very difficult, and it adds unnecessary files to the project. And then there is the problem with having to include header files, but having to explicitly check if it has already been included.
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jQuery How to Get Element's Margin and Padding?
...ndering - how using jQuery - I can get an elements formatted total padding and margin etc ? i.e. 30px 30px 30px 30px or 30px 5px 15px 30px etc
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How to JSON serialize sets?
I have a Python set that contains objects with __hash__ and __eq__ methods in order to make certain no duplicates are included in the collection.
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What really happens in a try { return x; } finally { x = null; } statement?
I saw this tip in another question and was wondering if someone could explain to me how on earth this works?
5 Answers
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Adding a new value to an existing ENUM Type
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NOTE if you're using PostgreSQL 9.1 or later, and you are ok with making changes outside of a transaction, see this answer for a simpler approach.
I had the same problem few days ago and found this post. So my answer can be helpful for someone who is looking for solut...
How to convert local time string to UTC?
...igure out what the local timezone is, construct a timezone object from it, and manipulate and attach it to the naive datetime.
Finally, use datetime.astimezone() method to convert the datetime to UTC.
Source code, using local timezone "America/Los_Angeles", for the string "2001-2-3 10:11:12":
imp...
What does a colon following a C++ constructor name do? [duplicate]
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This is an initialization list, and is part of the constructor's implementation.
The constructor's signature is:
MyClass();
This means that the constructor can be called with no parameters. This makes it a default constructor, i.e., one which will be ca...
Make Div overlay ENTIRE page (not just viewport)?
...verlay div cover the ENTIRE page... NOT just the viewport. I don't understand why this is so hard to do... I've tried setting body, html heights to 100% etc but that isn't working. Here is what I have so far:
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'Missing contentDescription attribute on image' in XML
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Follow this link for solution: Android Lint contentDescription warning
Resolved this warning by setting attribute android:contentDescription
for my ImageView
android:contentDescription="@string/desc"
Android Lint support in ADT 16 throws this warning to e...
Obtain form input fields using jQuery?
... In newer versions of jQuery, Simon_Weaver's answer is more robust and easier.
– MightyE
May 3 '10 at 21:27
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