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Delegates: Predicate vs. Action vs. Func
Can someone provide a good explanation (hopefully with examples) of these 3 most important delegates:
8 Answers
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How to change legend title in ggplot
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This should work:
p <- ggplot(df, aes(x=rating, fill=cond)) +
geom_density(alpha=.3) +
xlab("NEW RATING TITLE") +
ylab("NEW DENSITY TITLE")
p <- p + guides(fill=guide_legend(title="New Legend Title"))
(or alternatively)
p...
Different floating point result with optimization enabled - compiler bug?
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Intel x86 processors use 80-bit extended precision internally, whereas double is normally 64-bit wide. Different optimization levels affect how often floating point values from CPU get saved into memory and thus rounded from 80-bit...
Kill a postgresql session/connection
...tions to other databases
AND datname = 'database_name'
;
Before executing this query, you have to REVOKE the CONNECT privileges to avoid new connections:
REVOKE CONNECT ON DATABASE dbname FROM PUBLIC, username;
If you're using Postgres 8.4-9.1 use procpid instead of pid
SELECT
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how to disable DIV element and everything inside [duplicate]
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@MaxStrater It won't switch the old click bindings on
– Samy S.Rathore
May 27 '14 at 13:29
1
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深入浅出计算机字符集编码 - C/C++ - 清泛网 - 专注C/C++及内核技术
...后台通过正则表达式能够验证通过，正则表达式为“^(([\x20-\x7e])|(\x8e[\xa6-\xdf])){1,32}$“。现在问题是UT测试代码能够通过，而前台输入则不能。
此时若后台采用的是JAVA编程，问题便很容易解决直接用destStr = new String(sourceStr.getBy...
How do I change the figure size with subplots?
I came across this example in the Matplotlib website. I was wondering if it was possible to increase the figure size.
2 A...
Using C# to check if string contains a string in string array
... use C# to check if a string value contains a word in a string array. For example,
29 Answers
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using lodash .groupBy. how to add your own keys for grouped output?
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You can do it like this in Lodash 4.x
var data = [{
"name": "jim",
"color": "blue",
"age": "22"
}, {
"name": "Sam",
"color": "blue",
"age": "33"
}, {
"name": "eddie",
"color": "green",
"age": "77"
}];
console.log(
_.chai...
Difference between char* and const char*?
...to (https://msdn.microsoft.com/en-us/library/vstudio/whkd4k6a(v=vs.100).aspx, see "Examples"). In this case, the const specifier applies to char, not the asterisk.
According to the MSDN page and http://en.cppreference.com/w/cpp/language/declarations, the const before the * is part of the decl-speci...