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How can we make xkcd style graphs?
...library(xkcd) Loading required package: extrafont Registering fonts with R Error in loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]]) : there is no package called ‘acepack’ Error: package or namespace load failed for ‘xkcd’ and trying for acepack yields > ...
How do I create a URL shortener?
...imilar that they are near impossible to tell the difference) and downright error prone. Try to use lower or upper case only.
Also, try to have a format where you mix the numbers and characters in a predefined form. There are studies that show that people tend to remember one form better than others...
How to convert a string of bytes into an int?
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Regular expression to check if password is “8 characters including 1 uppercase letter, 1 special cha
...ing it would be easier. This would also allow you to provide more directed error messages to your users (other than just Invalid Password) which should improve user experience.
From what I am seeing you are pretty fluent in regex, so I would presume that giving you the regular expressions to do wha...
Delete a line in Eclipse
In a Visual Studio, you would use Ctrl + L , whereas in Eclipse I am forced to select a line or, if it is empty, go the beginning of the line before clicking delete/backspace.
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Count number of files within a directory in Linux? [closed]
To count the number of files in a directory, I typically use
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What are invalid characters in XML
...s are invalid also. If you try to write 0x03 to an Xml document you get an error typically and if you do manage to properly escape it into an XML document, most viewers will complain about the invalid character. Edge case but it does happen.
– Rick Strahl
Jan 2...
How does generic lambda work in C++14?
...= [](auto a) { return a; };
int main() {}
With g++ 4.7:
prog.cpp:1:24: error: parameter declared ‘auto’
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However, the way it might be implemented in C++14 as per the Portland proposal for generic lambdas:
[](const& x, & y){ return x + y; }
This would yield for the biggest p...
Should flux stores, or actions (or both) touch external services?
...omises, but you can use Node-style
// callbacks or whatever you want for error handling.
SomeDataAccessLayer.doSomething(userId)
.then(function(newData) {
// Stores that optimistically updated may not do anything
// with a "SUCCESS" action, but you might e.g. stop showing
// a load...
What datatype to use when storing latitude and longitude data in SQL databases? [duplicate]
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+1: Avoid round-off error weirdness by using a fixed number of decimal places.
– S.Lott
Jul 28 '09 at 20:09
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