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What's the difference between “groups” and “captures” in .NET regular expressions?
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You won't be the first who's fuzzy about it. Here's what the famous Jeffrey Friedl has to say ...
Literal notation for Dictionary in C#?
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edited Sep 2 '15 at 11:57
answered Feb 12 '11 at 20:42
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json.net has key method?
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answered Aug 27 '11 at 19:49
svicksvick
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jQuery - Add ID instead of Class
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edited Dec 9 '15 at 3:39
gsamaras
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Determine if ActiveRecord Object is New
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edited Apr 11 '17 at 13:59
ndnenkov
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What does the 'L' in front a string mean in C++?
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It's a wchar_t literal, for extended character set. Wikipedia has a little discussion on this ...
How to find out if an installed Eclipse is 32 or 64 bit version?
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Hit Ctrl+Alt+Del to open the Windows Task manager and switch to the processes tab.
32-bit prog...
How to add multiple objects to ManyToMany relationship at once in Django ?
...dd() accepts an arbitrary number of arguments, not a list of them.
add(obj1, obj2, obj3, ...)
To expand that list into arguments, use *
add(*[obj1, obj2, obj3])
Addendum:
Django does not call obj.save() for each item but uses bulk_create(), instead.
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new Date() works differently in Chrome and Firefox
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The correct format for UTC would be 2013-02-27T17:00:00Z (Z is for Zulu Time). Append Z if not present to get correct UTC datetime string.
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What is Ruby equivalent of Python's `s= “hello, %s. Where is %s?” % (“John”,“Mary”)`
...You can inject little pieces of Ruby code directly into your strings.
name1 = "John"
name2 = "Mary"
"hello, #{name1}. Where is #{name2}?"
You can also do format strings in Ruby.
"hello, %s. Where is %s?" % ["John", "Mary"]
Remember to use square brackets there. Ruby doesn't have tuples, jus...