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Remove empty elements from an array in Javascript
...gs, the above function wouldn't remove elements that are an empty string.
One typical pattern that I see often used is to remove elements that are falsy, which include an empty string "", 0, NaN, null, undefined, and false.
You can pass to the filter method, the Boolean constructor function, or re...
Best way to load module/class from lib folder in Rails 3?
... edited Jul 3 '14 at 5:49
typeoneerror
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answered Oct 18 '10 at 18:49
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Does Java have a complete enum for HTTP response codes?
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I don't think there's one that's complete in the standard Java classes; HttpURLConnection is missing quite a few codes, like HTTP 100/Continue.
There's a complete list in the Apache HttpComponents, though:
org.apache.http.HttpStatus (replaced o...
What is the difference between ArrayList.clear() and ArrayList.removeAll()?
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The source is strong in this one. (To all other answers: Use the source, Luke.) Notice how clear() could be implemented as just the one line, size=0; but garbage-collection wouldn't know to collect the elements in the unreachable portions of the array...
What makes Lisp macros so special?
Reading Paul Graham's essays on programming languages one would think that Lisp macros are the only way to go. As a busy developer, working on other platforms, I have not had the privilege of using Lisp macros. As someone who wants to understand the buzz, please explain what makes this feature s...
Find a Git branch containing changes to a given file
I have 57 local branches. I know I made a change to a certain file in one of them, but I'm not sure which one. Is there some kind of command I can run to find which branches contain changes to a certain file?
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Why CancellationToken is separate from CancellationTokenSource?
...ated token. It would have been natural
to combine these two classes into one, but this design allows the two
key operations (initiating a cancellation request vs. observing and
responding to cancellation) to be cleanly separated. In particular,
methods that take only a CancellationToken can ...
Hosting a Maven repository on github
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(As noted, please make sure to chmod 700 settings.xml to ensure no one can read your password in the file. If someone knows how to make site-maven-plugin prompt for a password instead of requiring it in a config file, let me know.)
Then tell the GitHub site-maven-plugin about the new serve...
Is a successor for TeX/LaTeX in sight? [closed]
...eferencing, and so on. It goes by "LaTeX: a document preparation system".
One can very well imagine successors to LaTeX, alternatives that offer LaTeX's document management capabilities, and perhaps do it better -- like DocBook. (Well it's based on XML, but...) But it is hard to imagine alternative...
This project references NuGet package(s) that are missing on this computer
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OK9999, at one point, you must have enabled it from an earlier version of Visual Studio, by right clicking on the solution and choosing "Enable NuGet package restore" which did it the old way. We don't need that anymore
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