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How to convert DateTime to/from specific string format (both ways, e.g. given Format is “yyyyMMdd”)?
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if you have a date in a string with the format "ddMMyyyy" and want to convert it to "yyyyMMdd" you could do like this:
DateTime dt = DateTime.ParseExact(dateString, "ddMMyyyy",
CultureInfo.InvariantCulture);
dt.ToString("yyyyMMdd");
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Putting an if-elif-else statement on one line?
...itting everything on one line would most likely violate PEP-8 where it is mandated that lines should not exceed 80 characters in length.
It's also against the Zen of Python: "Readability counts". (Type import this at the Python prompt to read the whole thing).
You can use a ternary expression in P...
Getting Checkbox Value in ASP.NET MVC 4
...e hidden value (false)
If checked, then the form submits two fields (false and true) and MVC sets
true for the model's bool property
<input id="Remember" name="Remember" type="checkbox" value="@Model.Remember" />
This will always send the default value, if checked.
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Convert String to Float in Swift
...t numbers taken from a UITextField, which I presume, are actually Strings, and convert them to Float, so I can multiply them.
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Recover from git reset --hard?
...r backup. Perhaps your editor/IDE stores temp copies under /tmp or C:\TEMP and things like that.[1]
git reset HEAD@{1}
This will restore to the previous HEAD
[1] vim e.g. optionally stores persistent undo, eclipse IDE stores local history; such features might save your a**
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Inherit docstrings in Python class inheritance
I'm trying to do some class inheritance in Python. I'd like each class and inherited class to have good docstrings. So I think for the inherited class, I'd like it to:
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How to construct a std::string from a std::vector?
...only after assert(not v.empty());, since if the vector is empty, both v[0] and v.front() would invoke undefined behavior. That, aside from the syntactic simplicity of not having to use the address-of operator, is the real benefit of C++11's data() function, which works even on an empty vector.
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Cannot hide status bar in iOS7
...plist file add a row call it "View controller-based status bar appearance" and set it to NO
Note that this simply does not work, if you are using UIImagePickerController in the app.
from http://www.openfl.org/developer/forums/general-discussion/iphone-5ios-7-cant-hide-status-bar/, mgiroux's soluti...
memcpy() vs memmove()
I am trying to understand the difference between memcpy() and memmove() , and I have read the text that memcpy() doesn't take care of the overlapping source and destination whereas memmove() does.
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SQL keys, MUL vs PRI vs UNI
What is the difference between MUL , PRI and UNI in MySQL?
4 Answers
4
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