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Why doesn't list have safe “get” method like dictionary?
...f your list).
Of course, you can easily implement this yourself:
def safe_list_get (l, idx, default):
try:
return l[idx]
except IndexError:
return default
You could even monkeypatch it onto the __builtins__.list constructor in __main__, but that would be a less pervasive change since...
Hidden features of Eclipse [closed]
...
Ctrl+. (period) take you to the next error (red/yellow squiggly)....With these two, you are in a error fixing mode. :D
– st0le
Dec 1 '11 at 14:02
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What does enumerate() mean?
What does for row_number, row in enumerate(cursor): do in Python?
5 Answers
5
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Eclipse - Unable to install breakpoint due to missing line number attributes
I am getting this strange error in Eclipse while trying to set a breakpoint.
41 Answers
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iPad keyboard will not dismiss if modal ViewController presentation style is UIModalPresentationForm
... UIViewController and call it when you want the keyboard gone:
@interface _TempUIVC : UIViewController
@end
@implementation _TempUIVC
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
return YES;
}
@end
@implementation UIViewController (Helpers)
- ...
How to find all serial devices (ttyS, ttyUSB, ..) on Linux without opening them?
...lugged my (FTDI) serial device from the USB and afterwards it produced the error that you described.
– Warpspace
Jan 29 '19 at 8:30
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List of lists changes reflected across sublists unexpectedly
...at you create a new list at each position. One way to do it is
[[1]*4 for _ in range(3)]
which will reevaluate [1]*4 each time instead of evaluating it once and making 3 references to 1 list.
You might wonder why * can't make independent objects the way the list comprehension does. That's beca...
What's the fastest way to loop through an array in JavaScript?
...e better performance, writing code that is less legible and more prone to errors than a simple straightforward for loop. Therefore, I recommend:
If your app iterates over a lot of items or your loop code is inside a function that is used often, a straightforward for loop is the answer:
for (var ...
How to pick just one item from a generator?
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answered Feb 22 at 10:05
Dave RoveDave Rove
53044 silver badges99 bronze badges
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解决：调MFC dll时发生AfxGetInstanceHandle()断言错误 - C/C++ - 清泛网 -...
...执行文件（.EXE）的HINSTANCE值，除非它从与MFC的USRDLL版本连接的DLL内调用的。在这种情况下，它返回的是DLL的HINSTANCE值。
解决：相应的地方（如DLL函数入口等）添加以下两行代码
afxCurrentInstanceHandle = _AtlBaseModule.GetModuleInstance();...