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How do I iterate over an NSArray?
... most of the method call overhead.) Premature optimization is never a good idea — it results in messier code to solve a problem that isn't your bottleneck anyway.
When using -objectEnumerator, you very easily change to another enumerable collection (like an NSSet, keys in an NSDictionary, etc.), ...
How to Implement DOM Data Binding in JavaScript
... as strictly educational. I'm still interested in hearing new answers and ideas to implement this
15 Answers
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Hook up Raspberry Pi via Ethernet to laptop without router? [closed]
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It's a solution for Ubuntu (the idea also works for Windows or Mac) I just tried today and it works like a charm.
Material
a cross-over Ethernet cable (the name is fancy but it's just a normal Ethernet cable)
a laptop (ubuntu)
a Raspberry Pi (I have the...
Override Java System.currentTimeMillis for testing time sensitive code
... bite the bullet and refactor that legacy code to use a replaceable clock. Ideally that should be done with dependency injection, but even if you used a replaceable singleton you would gain testability.
This could almost be automated with search and replace for the singleton version:
Replace Cale...
How can I recover the return value of a function passed to multiprocessing.Process?
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Any ideas why my getpid() return all the same value? I'm running Python3
– zelusp
Oct 29 '16 at 17:39
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How is Node.js inherently faster when it still relies on Threads internally?
...histicated enough to start more work for the same request, but you get the idea.)
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Shell one liner to prepend to a file
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It may be worth noting that it often is a good idea to safely generate the temporary file using a utility like mktemp, at least if the script will ever be executed with root privileges. You could for example do the following (again in bash):
(tmpfile=`mktemp` && ...
npm global path prefix
...TH with:
export PATH=/usr/local/share/npm/bin:$PATH
isn't a terrible idea. Having said that, you shouldn't have to do it.
Run this:
npm config get prefix
The default on OS X is /usr/local, which means that npm will symlink binaries into /usr/local/bin, which should already be on your PATH ...
.toArray(new MyClass[0]) or .toArray(new MyClass[myList.size()])?
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From JetBrains Intellij Idea inspection:
There are two styles to convert a collection to an array: either using
a pre-sized array (like c.toArray(new String[c.size()])) or
using an empty array (like c.toArray(new String[0]). In
older Ja...
Best way to organize jQuery/JavaScript code (2013) [closed]
...w, will encompass everything. We'll split stuff as we go along.
The whole idea of this step is to go from step 1 and delete all the copy-pastas, to replace them with units that are loosely coupled. So, instead of having:
ad_unit1.js
$("#au1").click(function() { ... });
ad_unit2.js
$("#au2")....