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Why is SELECT * considered harmful?
...ould a consumer know which was which? SELECT * can also confuse views (at least in some versions SQL Server) when underlying table structures change -- the view is not rebuilt, and the data which comes back can be nonsense. And the worst part of it is that you can take care to name your columns wh...
Java: Check if enum contains a given string?
...ing thrown to find actual exceptional cases that are being retried. (or at least makes it very annoying to do so). Use exceptions for exceptional cases.
– Nickolay Kondratyev
Jan 29 '16 at 0:08
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What is the fastest method for selecting descendant elements in jQuery?
...tively.
So method 3 will always be the fastest because it needs to do the least amount of work and uses the most direct method to get first-level children.
Based on Anurag's revised speed tests here: http://jsfiddle.net/QLV9y/1/
Speed test: (More is Better)
On Chrome, Method 3 is the best then m...
Creating default object from empty value in PHP?
...ing for PHP versions <= 5.3.x, or simply have error_reporting set to at least E_WARNING with PHP versions >= 5.4. That error is triggered when $res is NULL or not yet initialized:
$res = NULL;
$res->success = false; // Warning: Creating default object from empty value
PHP will report a d...
How can I mock dependencies for unit testing in RequireJS?
... +1 Not pretty, but of all possible solutions this seems to be the least ugly/messy one. This problem deserves more attention.
– Chris Salzberg
Oct 28 '12 at 3:20
1
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Find the number of downloads for a particular app in apple appstore [closed]
...this is by far the best that I've found. Not sure if it's accurate, but at least they give you numbers that you can guess off of! They have numbers for Android, iOS (iPhone and iPad) and even Windows!
xyo.net
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Create a nonclustered non-unique index within the CREATE TABLE statement with SQL Server
... This works great, and according to BOL it goes back to 2008 at least. Like the OP, I find the code I mostly see (usually generated by SSMS) makes my eyeballs hurt, and I just like my table definitions to make sense for a rational human. Thanks.
– Wade Hatler
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Proper way to declare custom exceptions in modern Python?
...t you still derive from Exception as the docs recommend). Also, you can at least provide a docstring (and not be forced to use the pass keyword):
class MyAppValueError(ValueError):
'''Raise when my specific value is wrong'''
Set attributes you create yourself with a custom __init__. Avoid pas...
Undefined reference to static class member
Can anyone explain why following code won't compile? At least on g++ 4.2.4.
7 Answers
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Kill some processes by .exe file name
...Note: using async methods doesn't always mean code will run faster, but at least it will not waste the CPU time and will prevent the foreground thread from hanging while doing the operations. In any case, you need to think about what version you might want.
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