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Is String.Contains() faster than String.IndexOf()?
... 0);
}
Which calls CompareInfo.IndexOf, which ultimately uses a CLR implementation.
If you want to see how strings are compared in the CLR this will show you (look for CaseInsensitiveCompHelper).
IndexOf(string) has no options and Contains()uses an Ordinal compare (a byte-by-byte comparison rat...
Spring ApplicationContext - Resource leak: 'context' is never closed
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Since the app context is a ResourceLoader (i.e. I/O operations) it consumes resources that need to be freed at some point. It is also an extension of AbstractApplicationContext which implements Closable. Thus, it's got a close() method and can be used in a try-with-resources statement.
try (Clas...
Why does JQuery have dollar signs everywhere?
... is that everything is done with the one global symbol (since the global namespaces is ridiculously crowded), jQuery, but you can use $ (because it's shorter) if you like:
// These are the same barring your using noConflict (more below)
var divs = $("div"); // Find all divs
var divs = jQuery(...
Run JavaScript code on window close or page refresh?
...ing the .addEventListener:
window.onbeforeunload = function(){
// Do something
}
// OR
window.addEventListener("beforeunload", function(e){
// Do something
}, false);
Usually, onbeforeunload is used if you need to stop the user from leaving the page (ex. the user is working on some unsaved ...
How to check if an object is a generator object in python?
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How can I know if a branch has been already merged into master?
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git branch --merged master lists branches merged into master
git branch --merged lists branches merged into HEAD (i.e. tip of current branch)
git branch --no-merged lists branches that have not been merged
By default this applies to on...
How to check if a variable is an integer in JavaScript?
... this counts NaN as an integer. also performs worse against my method. jsperf.com/numbers-and-integers
– Blake Regalia
Jan 31 '13 at 23:54
2
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Android- create JSON Array and JSON Object
...= new JSONObject();
try {
student1.put("id", "3");
student1.put("name", "NAME OF STUDENT");
student1.put("year", "3rd");
student1.put("curriculum", "Arts");
student1.put("birthday", "5/5/1993");
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackT...
How to remove RVM (Ruby Version Manager) from my system
...mong other things.
You may also have an /etc/rvmrc file, or one in your home directory ~/.rvmrc that may need to be removed as well.
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How to find my Subversion server version number?
...k to the repository on the web and on the bottom of the page it will say something like:
"Powered by Subversion version 1.5.2 (r32768)."
From the command line: <insert curl, grep oneliner here>
If not displayed, view source of the page
<svn version="1.6.13 (r1002816)" href="http://subver...