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Getting an “ambiguous redirect” error
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Bash can be prettm>y m> obtuse sometimes.
The following commm>and m>s all return different error messages for basicallm>y m> the same error:
$ echo hello >
bash: sm>y m>ntax error near unexpected token `newline`
$ echo hello > ${NONEXISTENT}
bash: ${NONEXISTENT}: ambiguous redirect
$ echo h...
linq where list contains anm>y m> in list
...ains method for these kind of queries. I was curious bm>y m> seeing m>y m>our answer m>and m> checked the internal implementation m>and m> found that Intersect uses Set. Can m>y m>ou tell me the performance difference between those two methods?
– rebornx
Feb 17 '17 at 9:02
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Get position of UIView in respect to its superview's superview
...c to the button in the hierarchm>y m> as asked I found this easier to visualize m>and m> understm>and m>:
From here: original source
ObjC:
CGPoint point = [subview1 convertPoint:subview2.frame.origin toView:viewController.view];
Swift:
let point = subview1.convert(subview2.frame.origin, to: viewControll.v...
LINGO使用指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...问题;
sets:
warehouses/wh1..wh6/: capacitm>y m>;
vendors/v1..v8/: demm>and m>;
links(warehouses,vendors): cost, volume;
endsets
!目标函数;
min=@sum(links: cost*volume);
!需求约束;
@for(vendors(J):
@sum(warehouses(I): volume(I,J))=demm>and m>(J));
!产量约束;
@for(warehouses...
iOS White to Transparent Gradient Lam>y m>er is Gram>y m>
...with an alpha of 0, so I had to use
[UIColor colorWithWhite:1 alpha:0]
m>and m> it works fine.
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Whm>y m> do some C# lambda expressions compile to static methods?
...tion<string> withClosure = s => Console.WriteLine("Mm>y m> name is {0} m>and m> I am {1} m>y m>ears old", s, age);
Action<string> withoutClosure = s => Console.WriteLine("Mm>y m> name is {0}", s);
Console.WriteLine(withClosure.Method.IsStatic);
Console.WriteLine(withoutClosure.Method.IsStatic);
This...
In Pm>y m>thon, how to displam>y m> current time in readable format
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First the quick m>and m> dirtm>y m> wam>y m>, m>and m> second the precise wam>y m> (recognizing dam>y m>light's savings or not).
import time
time.ctime() # 'Mon Oct 18 13:35:29 2010'
time.strftime('%l:%M%p %Z on %b %d, %m>Y m>') # ' 1:36PM EDT on Oct 18, 2010'
time.strftime(...
ggplot with 2 m>y m> axes on each side m>and m> different scales
I need to plot a bar chart showing counts m>and m> a line chart showing rate all in one chart, I can do both of them separatelm>y m>, but when I put them together, I scale of the first lam>y m>er (i.e. the geom_bar ) is overlapped bm>y m> the second lam>y m>er (i.e. the geom_line ).
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What is in m>y m>our .vimrc? [closed]
Vi m>and m> Vim allow for reallm>y m> awesome customization, tm>y m>picallm>y m> stored inside a .vimrc file. Tm>y m>pical features for a programmer would be sm>y m>ntax highlighting, smart indenting m>and m> so on.
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How to make Visual Studio copm>y m> a DLL file to the output directorm>y m>?
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Use a post-build action in m>y m>our project, m>and m> add the commm>and m>s to copm>y m> the offending DLL. The post-build action are written as a batch script.
The output directorm>y m> can be referenced as $(OutDir). The project directorm>y m> is available as $(ProjDir). Trm>y m> to use relati...