...rotected over public doesn't apply. Use private[this] where performance really matters (since you'll get direct field access instead of methods this way). Otherwise, just settle on one style so people don't need to figure out why this property is private and that one is private[this]. ...

...is in the title of this post), but here's some code that will first delete all of the files older than 15 days, and then recursively delete any empty directories that may have been left behind. My code also uses the -Force option to delete hidden and read-only files as well. Also, I chose to not use...

...use is app.use() . When the middleware is being executed, it will either call the next middleware by using next() or make it so no more middleware get called. That means that the order in which I place my middleware calls is important, because some middleware depends on other middleware, and some...

... verse (import this from interactive prompt to see the Zen of Python); and all the reasons why namespaces are a honking great idea (immediate local visual clues that the name's being looked up, ease of mocking/injecting in tests, ability to reload, ability for a module to change flexibly by redefini...

...e Javascript has nothing to do with how the new tab/window is opened. It's all determined by your browser's settings. Using window.open tells the browser to open something new, then the browser opens up what is chosen in its settings - tab or window. In the browsers you tested with, change the setti...

... Call the global process object's exit method: process.exit() From the docs: process.exit([exitcode]) Ends the process with the specified code. If omitted, exit uses the 'success' code 0. To exit with a 'failure' code: proces...

...h: creal(z1): get the real part (for float crealf(z1), for long double creall(z1)) cimag(z1): get the imaginary part (for float cimagf(z1), for long double cimagl(z1)) Another important point to remember when working with complex numbers is that functions like cos(), exp() and sqrt() must be repl...

... Quick answer: A child scope normally prototypically inherits from its parent scope, but not always. One exception to this rule is a directive with scope: { ... } -- this creates an "isolate" scope that does not prototypically inherit. This construct is of...

Why is the following C# code not allowed: 16 Answers 16 ...

... Test with code snippet below: Small modification (From the solution provided by vikas) to suit my use case. Open popover on hover event for the popover button Keep popover open when hovering over the popover box Close popover on mouseleave for either the ...