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WebSockets protocol vs HTTP

...kets is better for situations that involve low-latency communication especially for low latency for client to server messages. For server to client data you can get fairly low latency using long-held connections and chunked transfer. However, this doesn't help with client to server latency which req...
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How to check if a String contains another String in a case insensitive manner in Java?

...tains is case sensitive. You can use java.util.regex.Pattern with the CASE_INSENSITIVE flag for case insensitive matching: Pattern.compile(Pattern.quote(wantedStr), Pattern.CASE_INSENSITIVE).matcher(source).find(); EDIT: If s2 contains regex special characters (of which there are many) it's impo...
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What does an exclamation mark mean in the Swift language?

...pple have chosen to declare the types as implicitly unwrapped, making the calling code more convenient, but less safe. Perhaps Apple might comb through their frameworks in the future, removing the uncertainty of implicitly unwrapped ("probably never nil") parameters and replacing them with optional...
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Possible reasons for timeout when trying to access EC2 instance

... could be the reasons why, and what can I do to resolve it? Rebooting normally takes a long time to take effect, and might just makes things worst ...
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switch case statement error: case expressions must be constant expression

...instead of an if-else: private enum LayoutElement { NONE(-1), PLAY_BUTTON(R.id.playbtn), STOP_BUTTON(R.id.stopbtn), MENU_BUTTON(R.id.btnmenu); private static class _ { static SparseArray<LayoutElement> elements = new SparseArray<LayoutElement>(); } ...
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Continuous Integration for Ruby on Rails? [closed]

...he results. I came from a .NET shop that used CruiseControl.NET and was really spoiled with its ease of use and rich status/reporting. ...
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How to commit my current changes to a different branch in Git [duplicate]

...nges should be committed in a branch different to the current one. This usually happens when I want to try out new things or do some testing and I forget to create a new branch beforehand, but I don't want to commit dirty code to the master branch. ...
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Best way for a 'forgot password' implementation? [closed]

... this is essentially the described way of properly resetting a password crackstation.net/hashing-security.htm#faq – TruthOf42 Nov 22 '13 at 13:30 ...
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kill -3 to get java thread dump

...'s stdout is placed. If you have a Tomcat server, this will be the catalina_(date).out file. share | improve this answer | follow | ...
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How can I create directories recursively? [duplicate]

... Specifically: os.makedirs(os.path.join("/home/dail", "first", "second", "third")) – mseery May 14 '11 at 22:41 ...