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Detecting arrow key presses in JavaScript

... use event.key. No more arbitrary number codes! If you are transpiling or know your users are all on modern browsers, use this! node.addEventListener('keydown', function(event) { const key = event.key; // "ArrowRight", "ArrowLeft", "ArrowUp", or "ArrowDown" }); Verbose Handling: switch (event.k...
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Assigning default values to shell variables with a single command in bash

... builtin to eat the expansion of the ${..} BUT leaving VARIABLE set. Until now I was doing this: VARIABLE="${VARIABLE:-DEFAULT_VALUE}" and feeling dorky for using VARIABLE twice. – dino Oct 6 '15 at 18:06 ...
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RedirectToAction with parameter

...ontroller... that was literally in my first days of MVC, if I had to guess now I'd say I had some kind of routing setup issue to look into. – Eric Brown - Cal Oct 28 '14 at 16:16 ...
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Java's Virtual Machine and CLR

...cept a List<String> or a List<Date>. Of course, since the CLR knows about parametric types, it has no problem handling methods overloaded on generic type specializations. On a day-to-day basis, that's the difference that I notice most between the CLR and the JVM. Other important diffe...
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Convert array of strings into a string in Java

...as: new String("Harry, Ron, Hermione"); ETA: Java 8 has similar support now: String.join(", ", "Harry", "Ron", "Hermione"); Can't see support for skipping null values, but that's easily worked around. share | ...
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How do I check if string contains substring? [duplicate]

... Good to know alternatives but using indexOf is faster. stackoverflow.com/questions/354110/… – Blowsie Feb 2 '12 at 15:55 ...
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How to center an iframe horizontally?

...t; <iframe></iframe> </div> It works because it is now inside a block element. share | improve this answer | follow | ...
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Detect if value is number in MySQL

...eptions you gave. Thought you meant the character "e". I see what you mean now. – Urbycoz Feb 21 '11 at 12:53 Leading ...
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How to get JS variable to retain value after page refresh? [duplicate]

... @Ian lol, good catch. I don't know why, but I'm sort of fascinated with window.name – Dagg Nabbit Apr 25 '13 at 4:52 ...
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How to use Servlets and Ajax?

...ntType("text/plain"); // Set content type of the response so that jQuery knows what it can expect. response.setCharacterEncoding("UTF-8"); // You want world domination, huh? response.getWriter().write(text); // Write response body. } Map this servlet on an URL pattern of /someservle...