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How to detect if multiple keys are pressed at once using JavaScript?

...ay I do it is like this: var map = {}; // You could also use an array onkeydown = onkeyup = function(e){ e = e || event; // to deal with IE map[e.keyCode] = e.type == 'keydown'; /* insert conditional here */ } This code is very simple: Since the computer only passes one keystroke at a t...
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What characters can be used for up/down triangle (arrow without stem) for display in HTML?

...oking for a HTML or ASCII character which is a triangle pointing up or down so that I can use it as a toggle switch. 19...
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Emacs on Mac OS X Leopard key bindings

... foward delete one word ⌥ + ↑ - move up one paragraph ⌥ + ↓ - move down one paragraph ⌘ + ← - move to start of current line ⌘ + → - move to end of current line Shift + any of the above extend selection by appropriate amount Click then drag - select text Double-click then drag - se...
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Amazon S3 - HTTPS/SSL - Is it possible? [closed]

...use a bucket named 'furniture-retailcatalog-us'. This would allow you use HTTPS with https://furniture-retailcatalog-us.s3.amazonaws.com/ You could, of course, put a CNAME DNS record to make that more friendly. For example, images-furniture.retailcatalog.us IN CNAME furniture-retailcatalog-us.s3.a...
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How can I get a side-by-side diff when I do “git diff”?

...variables. configuring the external diff tool via git config See also: https://git-scm.com/book/en/v2/Customizing-Git-Git-Configuration git diff --help http://www.pixelbeat.org/programming/diffs/ When doing a git diff, Git checks both the settings of above environment variables and its .gitcon...
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Adding a Google Plus (one or share) link to an email newsletter

... https://plus.google.com/share?url=http%3A%2F%2Fexample.com You can share the link on Google+ with the official Google+ share link. Replace the url parameter with the URL encoded link you want to share. ...
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What is the fastest method for selecting descendant elements in jQuery?

...eUploader: { brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
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iPad Safari scrolling causes HTML elements to disappear and reappear with a delay

.... Not a guaranteed fix, but fairly successful most of the time. Hat tip: https://web.archive.org/web/20131005175118/http://cantina.co/2012/03/06/ios-5-native-scrolling-grins-and-gothcas/ share | i...
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How do I fetch a branch on someone else's fork on GitHub? [duplicate]

...irst step. git@github.com:theirusername/reponame.git is an SSH-based URI https://github.com/theirusername/reponame.git is an HTTP URI Which one you prefer to use will depend on your situation. GitHub has a help article explaining the difference and helping you choose: Which remote URL should I u...
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John Carmack's Unusual Fast Inverse Square Root (Quake III)

... by the hexadecimal form of its floating-point representation, 0x5f3759df" https://mrob.com/pub/math/numbers-18.html On the same site it explains the whole thing. https://mrob.com/pub/math/numbers-16.html#le009_16 share ...