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Difference between outline and border

... FIDDLE (NB: Although firefox has the -moz-outline-radius property which allows rounded corners on outline... this property it is not defined in any CSS standard, and is not supported by other browsers (source)) 2) Styling one side only border has properties to style each side with border-top:, ...
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Using R to list all files with a specified extension

...f.files <- files[-grep(".xml", files, fixed=T)] First line just lists all files from working dir. Second one drops everything containing ".xml" (grep returns indices of such strings in 'files' vector; subsetting with negative indices removes corresponding entries from vector). "fixed" argument ...
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Soft hyphen in HTML ( vs. ­)

...ly, &shy's support is so inconsistent between browsers that it can't really be used. QuirksMode is right -- there's no good way to use soft hyphens in HTML right now. See what you can do to go without them. 2013 edit: According to QuirksMode, ­ now works/is supported on all major brows...
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How do I override nested NPM dependency versions?

...from": "connect@~2.7.3" } } } } } npm should automatically pick it up while doing the install for the project. (See: https://nodejs.org/en/blog/npm/managing-node-js-dependencies-with-shrinkwrap/) share ...
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How do I create a dynamic key to be added to a JavaScript object variable [duplicate]

... Square brackets: jsObj['key' + i] = 'example' + 1; In JavaScript, all arrays are objects, but not all objects are arrays. The primary difference (and one that's pretty hard to mimic with straight JavaScript and plain objects) is that array instances maintain the length property so that it r...
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How to get the first element of an array?

...code. It simply shows undefined, since that's the value of a[0], which actually is the first item in the array. If you want it to show foo you should skip all undefined values but it wouldn't be the first item in the array. – Michiel van der Blonk Sep 6 '16 at ...
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How do I make a simple makefile for gcc on Linux?

...ple as possible by omitting variables like $(CC) and $(CFLAGS) that are usually seen in makefiles. If you're interested in figuring that out, I hope I've given you a good start on that. Here's the Makefile I like to use for C source. Feel free to use it: TARGET = prog LIBS = -lm CC = gcc CFLAGS ...
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Java HashMap performance optimization / alternative

...={99,100}) will hash to the same value as (a[]={3,1,2}, b[]={100,99}). Actually all keys k1 and k2 where sum(k1.a)==sum(k2.a) and sum(k1.b)=sum(k2.b) will result in collisions. I suggest assigning a weight to each position of the array: hash = hash * 5381 + (c0*a[0] + c1*a[1]); hash = hash * 5381 +...
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How can I make an entire HTML form “readonly”?

...the submission form again with a confirmation message. On this second form all fields must be static. 12 Answers ...
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Multiple file extensions in OpenFileDialog

...te groups so JPG are *.jpg and *.jpeg, TIFF are *.tif and *.tiff and also 'All graphic types'? How can I do that? 3 Answers...