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How to detect if a variable is an array

...ng() (this is guaranteed to work by ECMA-262): Object.prototype.toString.call(obj) === '[object Array]' Both methods will only work for actual arrays and not array-like objects like the arguments object or node lists. As all array-like objects must have a numeric length property, I'd check for th...
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HTTP GET with request body

...body with a GET request. Yes. In other words, any HTTP request message is allowed to contain a message body, and thus must parse messages with that in mind. Server semantics for GET, however, are restricted such that a body, if any, has no semantic meaning to the request. The requirements on parsin...
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Get specific object by id from array of objects in AngularJS

...by id, the result is an array // so we select the element 0 single_object = $filter('filter')(foo.results, function (d) {return d.id === 2;})[0]; // If you want to see the result, just check the log console.log(single_object); }]); Plunker: http://plnkr.co/edit/5E7FYqNNqDuqFBlyDq...
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How can I show dots (“…”) in a span with hidden overflow?

... standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book</span> JSFiddle share | improve this answer ...
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package R does not exist

...kage.R; Of course, replacing your.app.package with your app package. In all the classes which use R resource references, remove any other import with .R, i.e. import android.R; share | improve th...
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What is the correct way to start a mongod service on linux / OS X?

I've installed mongodb and have been able to run it, work with it, do simple DB read / write type stuff. Now I'm trying to set up my Mac to run mongod as a service. ...
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How do I clear the terminal screen in Haskell?

...nal support, with Windows compatibility You can find it in Hackage and install using cabal install ansi-terminal. It specifically has functions for clearing the screen, displaying colors, moving the cursor, etc. Using it to clear the screen is easy: (this is with GHCI) import System.Console.ANSIclea...
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What are free monads?

...r monad, and the second one gives you a way to "get out" of it. More generally, if X is a Y with some extra stuff P, then a "free X" is a a way of getting from a Y to an X without gaining anything extra. Examples: a monoid (X) is a set (Y) with extra structure (P) that basically says it has an ope...
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How do I monitor the computer's CPU, memory, and disk usage in Java?

... = 390625000 is only how long that thread has been running. That is not really useful for determining the processor usage – MikeNereson Jul 14 '09 at 15:35 2 ...
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How to tell if a browser is in “quirks” mode?

...wered Mar 9 '09 at 17:02 Chris BallanceChris Ballance 31.4k2525 gold badges100100 silver badges147147 bronze badges ...