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What does the star operator mean, in a function call?
...are not operators. Operators are used in expressions to create new values from existing values (1+2 becomes 3, for example. The * and ** here are part of the syntax of function declarations and calls.
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ArrayList vs List in C#
...class. It supports storing values of a specific type without casting to or from object (which would have incurred boxing/unboxing overhead when T is a value type in the ArrayList case). ArrayList simply stores object references. As a generic collection, List<T> implements the generic IEnumerab...
What's the effect of adding 'return false' to a click event listener?
...separate outcomes going to make tabstripLinkElement_click change operation from browser to browser? If there's no operational difference, why (in practice) bother (even if, in theory, this is The Right Thing to do)? Thanks, and AIA for the zombie answer question.
– ruffin
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Difference between app.use and app.get in express.js
..., but nobody does a great job of explaining how they function differently. From what I can gather, all .use handlers run first, and .use matches any path that begins with the specified path (i.e. .use('/', ...) and .get('/*', ...) would match the same paths). For me it's easier to understand the ove...
What's the most elegant way to cap a number to a segment? [closed]
... ternary is twice as fast as Math.min/max - and if you remove the overhead from the far more expensive Math.random() call, this simple approach is 10 x faster.
– mindplay.dk
Oct 5 '17 at 8:48
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Should Gemfile.lock be included in .gitignore?
... of new to bundler and the files it generates. I have a copy of a git repo from GitHub that is being contributed to by many people so I was surprised to find that bundler created a file that didn't exist in the repo and wasn't in the .gitignore list.
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How to add a “open git-bash here…” context menu to the windows explorer?
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The easiest way is to install the latest Git from here. And while installing, make sure you are enabling the option Windows Explorer Integration.
Once you are done, you will get those options in whenever you right click on any folder.
Hope it helps.
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Difference between `set`, `setq`, and `setf` in Common Lisp?
... SETQ are atrophied remains of older dialects, and will probably be booted from eventual successors of Common Lisp.
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Hex representation of a color with alpha channel?
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In CSS 3, to quote from the spec, "there is no hexadecimal notation for an RGBA value" (see CSS Level 3 spec). Instead you can the use rgba() functional notation with decimals or percentages, e.g. rgba(255, 0, 0, 0.5) would be 50% transparent r...
Yank file name / path of current buffer in Vim
...been deleted or copied (yanked), likewise when you paste it reads the text from this register.
Using let we can manually store text in the register using :let @" = "text" but we can also store the result of an expression.
In the above example we use the function expand which expands wildcards and ...