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TypeError: 'NoneType' object is not iterable in Python
... Correct, But the common scenario author intended here is totally to skip the for loop instead of raising an exception. Python's design is flawed here. When None is treated as an iterable it must return empty list at least. This exception never helped anyone in real life other than making us ...
How to Resize a Bitmap in Android?
I have a bitmap taken of a Base64 String from my remote database, ( encodedImage is the string representing the image with Base64):
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How to debug heap corruption errors?
...2008. On seemingly random occasions, I get a "Windows has triggered a break point..." error with a note that this might be due to a corruption in the heap. These errors won't always crash the application right away, although it is likely to crash short after.
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Turn off Chrome/Safari spell checking by HTML/css
Is there a way for a web developer to turn off Chrome/Safari/WebKit's spellchecking on particular input or textarea elements? I mean either by special tag attribute or a proprietary CSS instruction.
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MySQL query to get column names?
I'd like to get all of a mysql table's col names into an array in php?
21 Answers
21
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log all sql queries
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Maybe check out https://github.com/django-debug-toolbar/django-debug-toolbar
It'll let you see all the queries generated by a given page. As well as stacktraces of where they occur etc.
EDIT: to log all SQL queries to a file etc, th...
How to get the first and last date of the current year?
...EDIFF(yy, 0, GETDATE()) + 1, 0)) AS LastTimeOfYear
Tech Details
This works by figuring out the number of years since 1900 with DATEDIFF(yy, 0, GETDATE()) and then adding that to a date of zero = Jan 1, 1900. This can be changed to work for an arbitrary date by replacing the GETDATE() portion or a...
How does free know how much to free?
In C programming, you can pass any kind of pointer you like as an argument to free, how does it know the size of the allocated memory to free? Whenever I pass a pointer to some function, I have to also pass the size (ie an array of 10 elements needs to receive 10 as a parameter to know the size of t...
Java Annotations
...r wrapping) existing classes at run-time to change their behavior. Frameworks such as JUnit and Hibernate use annotations to minimize the amount of code you need to write yourself to use the frameworks.
Oracle has a good explanation of the concept and its meaning in Java on their site.
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How do I set up NSZombieEnabled in Xcode 4?
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In Xcode 4.x press
⌥⌘R
(or click Menubar > Product > Scheme > Edit Scheme)
select the "Diagnostics" tab and click "Enable Zombie Objects":
This turns released objects into NSZombie instances that print console warnings when used again. This...