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Maintain the aspect ratio of a div with CSS
... an example where the .stretchy-wrap.onethird padding-bottom of 25% is actually 25% of the parent width. Can someone explain this?
– Misterparker
Feb 8 '13 at 15:53
4
...
Pythonic way to check if a file exists? [duplicate]
...
It seems to me that all other answers here (so far) fail to address the race-condition that occurs with their proposed solutions.
Any code where you first check for the files existence, and then, a few lines later in your program, you create it...
Removing empty lines in Notepad++
...g like a regular expression.
You have to be in Extended mode
If you want all the lines to end up on a single line use \r\n. If you want to simply remove empty lines, use \n\r as @Link originally suggested.
Replace either expression with nothing.
...
jQuery selector for the label of a checkbox
...browsers (Safari/Chrome), you can do $('#comedyclubs')[0].labels to access all the labels assigned to #comedyclubs.
– Matt
Aug 9 '12 at 2:17
1
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What is the difference between the states selected, checked and activated in Android?
...
The difference between Checked and Activated is actually quite interesting. Even the Google documentation is apologetic (emphasis below added):
... For example, in a list view with single or multiple selection
enabled, the views in the current selection set are activate...
How to install an npm package from GitHub directly?
Trying to install modules from github results in:
15 Answers
15
...
Update a column value, replacing part of a string
... clause optimizes the query to only modify the rows with certain URL. Logically, the result will be the same, but the addition of WHERE will make the operation faster.
– Dmytro Shevchenko
Aug 14 '15 at 14:34
...
How to create a custom exception type in Java? [duplicate]
... flag a problematic situation that should be handled by the developer who calls your method. It should be possible to recover from such an exception. A good example of this is a FileNotFoundException. Those exceptions are subclasses of Exception.
Unchecked exceptions are meant to represent a bug in ...
Oracle Differences between NVL and Coalesce
...ented differently.
NVL always evaluates both arguments, while COALESCE usually stops evaluation whenever it finds the first non-NULL (there are some exceptions, such as sequence NEXTVAL):
SELECT SUM(val)
FROM (
SELECT NVL(1, LENGTH(RAWTOHEX(SYS_GUID()))) AS val
FROM dual
...
Can't operator == be applied to generic types in C#?
...perator ==(Test a, Test b)
{
Console.WriteLine("Overloaded == called");
return a.Equals(b);
}
public static bool operator !=(Test a, Test b)
{
Console.WriteLine("Overloaded != called");
return a.Equals(b);
}
}
}
Output
Inline:
Overloaded == c...