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Hashset vs Treeset
...eadSet(), and tailSet() etc
Important points:
Both guarantee duplicate-free collection of elements
It is generally faster to add elements to the HashSet and then convert the collection to a TreeSet for a duplicate-free sorted traversal.
None of these implementations are synchronized. That is if ...
.NET - Dictionary locking vs. ConcurrentDictionary
...y using TryGetValue).
So do use them, but don't think that it gives you a free pass to ignore all concurrency issues. You still need to be careful.
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How to find out which processes are using swap space in Linux?
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funny though, I get Overall swap used: 260672 KB, while free shows 738932 as used...
– Doncho Gunchev
Dec 18 '12 at 16:13
25
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Why doesn't .NET/C# optimize for tail-call recursion?
...culus. For a very good book on the principles of Lambda calculus, see this free book: Structure and Interpretation of Computer Programs, by Abelson, Sussman, and Sussman.
For a very good introductory article on tail calls in F#, see this article: Detailed Introduction to Tail Calls in F#. Finally, h...
How to validate an email address in PHP
...by sending a confirmation mail.
Now that you have your easy answer feel free to read on about email address validation if you care to learn or otherwise just use the fast answer and move on. No hard feelings.
Trying to validate an email address using a regex is an "impossible" task. I would go ...
Should we use Nexus or Artifactory for a Maven Repo?
...ying from Maven works out of the box (no need for WebDAV hacks, etc).
it's free
You can redirect access paths (i.e. some broken pom.xml requires "a.b.c" from "xxx"). Instead of patching the POM, you can fix the bug in Nexus and redirect the request to the place where the artifact really is.
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Meteor test driven development [closed]
... tasks for running your Mocha tests. If you are using JS with Meteor, feel free to adapt the commands for a Makefile.
Your Meteor models will need a slight bit of modification to expose themselves to Mocha, and this requires some knowledge of how Node.js works. Think of each Node.js file as being e...
close vs shutdown socket?
...use shutdown to send a shutdown sequence at the TCP level and use close to free up the resources used by the socket data structures in your process. If you haven't issued an explicit shutdown sequence by the time you call close then one is initiated for you.
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How to edit multi-gigabyte text files? Vim doesn't work =( [closed]
...da disappointing that vim wasn't up to the task : ( In the end I used some free dedicated tool to split the file into 100MB files.
– slawek
Jan 7 '14 at 14:12
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How can you search Google Programmatically Java API [closed]
...gle search.
Currently (date of answer) you get 100 api calls per day for free, then google like to share your profit.
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