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When would I use Task.Yield()?
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edited Mar 25 '14 at 20:14
answered Mar 25 '14 at 20:05
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stringstream, string, and char* conversion confusion
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202
stringstream.str() returns a temporary string object that's destroyed at the end of the full ex...
Omit rows containing specific column of NA
... put it into a function thusly:
DF <- data.frame(x = c(1, 2, 3), y = c(0, 10, NA), z=c(NA, 33, 22))
completeFun <- function(data, desiredCols) {
completeVec <- complete.cases(data[, desiredCols])
return(data[completeVec, ])
}
completeFun(DF, "y")
# x y z
# 1 1 0 NA
# 2 2 10 33
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iOS开发过程中的各种tips - 更多技术 - 清泛网 - 专注C/C++及内核技术
...否交叉，是否重叠
CGRectZero//高度和宽度为零的，位于（0，0）的矩形常量
3.隐藏状态栏
[UIApplication sharedApplication] setStatusBarHidden:<#(BOOL)#> withAnimation:<#(UIStatusBarAnimation)#>//隐藏状态栏
4.自动适应父视图大小
self.view.autoresizesSub...
Difference between UTF-8 and UTF-16?
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answered Jan 11 '11 at 7:50
Sergei TachenovSergei Tachenov
21.6k77 gold badges4747 silver badges6464 bronze badges
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Java naming convention for static final variables [duplicate]
...nym as a name prefix, as in:
interface ProcessStates {
int PS_RUNNING = 0;
int PS_SUSPENDED = 1;
}
Obscuring involving constant names is rare:
Constant names normally have no lowercase letters, so they will not normally obscure names of packages or types, nor will they normally s...
Difference between InvariantCulture and Ordinal string comparison
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309
InvariantCulture
Uses a "standard" set of character orderings (a,b,c, ... etc.). This is in c...
Using SSH keys inside docker container
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30 Answers
30
Active
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JavaScript query string [closed]
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answered Mar 15 '09 at 5:33
Shadow2531Shadow2531
11.1k55 gold badges2828 silver badges3838 bronze badges
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