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The type or namespace name 'DbContext' could not be found [closed]
...ience; the EntityFramework.dll for 4.2.0.0 was not present even though the vs2010 Package Manager claimed I had 4.2.0.0 installed. With my project open in vs2010, running the install command via Tools, Library Package Manager, Package Manager Console added the reference to EntityFramework automatic...
python pandas remove duplicate columns
...n groups.items():
dcols = frame[v].to_dict(orient="list")
vs = dcols.values()
ks = dcols.keys()
lvs = len(vs)
for i in range(lvs):
for j in range(i+1,lvs):
if vs[i] == vs[j]:
dups.append(ks[i])
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Ruby on Rails patterns - decorator vs presenter
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I suggest you to check this - Exhibit vs Presenter.
Decorator is a design pattern that is used to extend the functionality of a specific object by wrapping it, without effecting other instances of that object. In general, the decorator pattern is an example of t...
How to open a URL in a new Tab using JavaScript or jQuery? [duplicate]
...it to be opened
win.focus();
} else {
//Browser has blocked it
alert('Please allow popups for this website');
}
Depending on the browsers implementation this will work
There is nothing you can do to make it open in a window rather than a tab.
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What is the difference between a 'closure' and a 'lambda'?
...me f, allowing you to refer to it and call it multiple times later, e.g.:
alert( f(7) + f(10) ); // should print 21 in the message box
But you didn't have to name it. You could call it immediately:
alert( function(x) { return x+2; } (7) ); // should print 9 in the message box
In LISP, l...
jQuery .live() vs .on() method for adding a click event after loading dynamic html
...eat explanation! I've never before been able to wrap my head around live() vs. on() but tonight I decided yet again to try, and your explanation immediately revealed what I had been missing all along. Thanks!
– MikeSchinkel
May 19 '13 at 6:20
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Edit and Continue: “Changes are not allowed when…”
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community wiki
5 revs, 2 users 71%nightcoder
add a comment
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Subqueries vs joins
I refactored a slow section of an application we inherited from another company to use an inner join instead of a subquery like:
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Stop Visual Studio from mixing line endings in files
...RLF instead of the line ending format of the original file. How can I stop VS from doing this? Any half decent editor should have this capability.
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C# loop - break vs. continue
...use break, or continue. This is what helps me remember:
When to use break vs continue?
Break - it's like breaking up. It's sad, you guys are parting. The loop is exited.
Continue - means that you're gonna give today a rest and sort it all out tomorrow (i.e. skip the current iteration)!
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