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Join vs. sub-query
I am an old-school MySQL user and have always preferred JOIN over sub-query. But nowadays everyone uses sub-query, and I hate it; I don't know why.
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Exit codes in Python
...-the-wool Gentoo advocate, yet I never knew that... until this fated day. (My shame ends now.) Relatedly, note that grep breaks this trend by exiting with 1 when no lines match and 2 on actual errors. Thanks alot, Stallman.
– Cecil Curry
Jan 3 '16 at 8:57
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How to prevent rm from reporting that a file was not found?
...user's request and you're right he was asking for files only. So corrected my answer
– vimdude
Jun 12 '13 at 20:12
Wha...
Controller not a function, got undefined, while defining controllers globally
...ective on your angular root element (eg:- html) as well. Example:- ng-app="myApp"
If everything is fine and you are still getting the issue do remember to make sure you have the right file included in the scripts.
You have not defined the same module twice in different places which results in any en...
iOS - Dismiss keyboard when touching outside of UITextField
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Fantastic, it works on UITableView!! it save my day! As a side note I will use [UITextField resignFirstResponder] instead of [UIView endEditing:] because I have more UITextField and endEditing gives a wrong scrolling position even if the new UITextField is visible.
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Error: The processing instruction target matching “[xX][mM][lL]” is not allowed
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You have my sympathies as intermittent problems are notoriously difficult to debug. However, I cannot help more from here other than to tell you that this error is definitely deterministic: It will always be an error for an XML decla...
Traverse a list in reverse order in Python
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You can do:
for item in my_list[::-1]:
print item
(Or whatever you want to do in the for loop.)
The [::-1] slice reverses the list in the for loop (but won't actually modify your list "permanently").
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Creating an empty file in C#
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My code was using using (File.Create(filename)) ;, but I love the simplicity of File.Create(filename).Dispose();
– Vadim
Apr 29 '13 at 16:17
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How to print a stack trace in Node.js?
...omething unexpected has occurred.
at main (c:\Users\Me\Documents\MyApp\app.js:9:15)
at Object. (c:\Users\Me\Documents\MyApp\app.js:17:1)
at Module._compile (module.js:460:26)
at Object.Module._extensions..js (module.js:478:10)
at Module.load (module....
Which is faster/best? SELECT * or SELECT column1, colum2, column3, etc
...chema into ROM (it happens), then an * is perfectly acceptable.
However, my general guideline is that you should only select the columns you need, which means that sometimes it will look like you are asking for all of them, but DBAs and schema evolution mean that some new columns might appear that...