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Why does a function with no parameters (compared to the actual function definition) compile?
...se mislead by^W^Wfond of C++ may cringe, though, because they need to type extra characters when they try to exercise their foreign language skills :-)
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Black transparent overlay on image hover with only CSS?
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Here's a good way using :after on the image div, instead of the extra overlay div: http://jsfiddle.net/Zf5am/576/
<div class="image">
<img src="http://www.newyorker.com/online/blogs/photobooth/NASAEarth-01.jpg" alt="" />
</div>
.image {position:relative; border:1px...
SQL Server - stop or break execution of a SQL script
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perfect. does not require sysadmin ultra extra user rights
– Pac0
Nov 5 '18 at 10:40
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Running Python on Windows for Node.js dependencies
...THON=%PYTHON%;D:\Python
First, you're setting PYTHON to ;D:\Python. That extra semicolon is fine for a semicolon-separated list of paths, like PATH or PYTHONPATH, but not for a single value like PYTHON. And likewise, adding a new value to the existing value is what you want when you want to add an...
Should each and every table have a primary key?
... creates a primary key if you didn't specify it explicitly, thus making an extra column you don't have access to.
Note that a primary key can be composite.
If you have a many-to-many link table, you create the primary key on all fields involved in the link. Thus you ensure that you don't have two ...
html5 - canvas element - Multiple layers
...element.
https://github.com/federicojacobi/layeredCanvas
I intend to add extra capabilities, but for now it will do.
You can do multiple functions and call them in order to "fake" layers.
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Add EBS to Ubuntu EC2 Instance
...! I was totally confused by the /mnt directory and wrongly assumed that my extra EBS volume (/dev/xvdf) that I told AWS to attach at instance creation was already mounted. Also, the mapping between what AWS shows (/dev/sdf) and (/dev/xvdf) that exists on ubuntu tripped me up.
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Sending a message to nil in Objective-C
...ethods all return 0 when you've got a nil value, so you do not have to add extra checks for nil all over:
if ( [myString length] > 0 )
or this:
return [myArray count]; // say for number of rows in a table
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Unit testing of private methods [duplicate]
...X has a lot of code in the private member functions then it might be worth extracting a new class Y which is used by the implementation of class X. This new class Y can then be tested through its public interface, without exposing its use to the clients of class X.
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Newline in markdown table?
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Use <br> to force a line break within a table cell.
Markdown Extra and MultiMarkdown allow tables, but after trial and error, it seems an HTML line break is needed in this case.
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