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How to generate a number of most distinctive colors in R?
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I joined all qualitative palettes from RColorBrewer package. Qualitative palettes are supposed to provide X most distinctive colours each. Of course, mixing them joins into one palette also similar colours, but that's the best I can g...
Array initialization syntax when not in a declaration
... it can distinguish the two cases. The grammatical issue is not subtle at all!!
– Stephen C
Mar 22 '11 at 11:12
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Functions that return a function
...e to the function. Putting the parenthesis at the end of a function name, calls the function, returning the functions return value.
Demo
function a() {
alert('A');
}
//alerts 'A', returns undefined
function b() {
alert('B');
return a;
}
//alerts 'B', returns function a
function c() {...
Determine the number of lines within a text file
Is there an easy way to programmatically determine the number of lines within a text file?
11 Answers
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how to convert binary string to decimal?
... JS practicing could be
var bin2int = s => Array.prototype.reduce.call(s, (p,c) => p*2 + +c)
console.log(bin2int("101010"));
where +c coerces String type c to a Number type value for proper addition.
share
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C fopen vs open
...uestion. In places where you are mainly reading or writing a file sequentially, the buffering support is really helpful and a big speed improvement. But it can lead to some interesting problems in which data does not end up in the file when you expect it to be there. You have to remember to fclos...
How do I install a NuGet package .nupkg file locally?
I have some .nupkg files from a C# book. How can I install them?
8 Answers
8
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Waiting on a list of Future
...//4 tasks
for(int i = 0; i < 4; i++) {
completionService.submit(new Callable<SomeResult>() {
public SomeResult call() {
...
return result;
}
});
}
int received = 0;
boolean errors = false;
while(received < 4 && !errors) {
Future&l...
Parse string to DateTime in C#
...teTime.Parse() will try figure out the format of the given date, and it usually does a good job. If you can guarantee dates will always be in a given format then you can use ParseExact():
string s = "2011-03-21 13:26";
DateTime dt =
DateTime.ParseExact(s, "yyyy-MM-dd HH:mm", CultureInfo.Invar...
Iterate through a C++ Vector using a 'for' loop
...++ language. I have been starting to use vectors, and have noticed that in all of the code I see to iterate though a vector via indices, the first parameter of the for loop is always something based on the vector. In Java I might do something like this with an ArrayList:
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