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Perl flags -pe, -pi, -p, -w, -d, -i, -t?

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Best way to center a on a page vertically and horizontally? [duplicate]

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C++ valarray vs. vector

...would I use a valarray instead of a vector? I know valarrays have some syntactic sugar, but other than that, when are they useful? ...
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Is there a way to check if a file is in use?

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Why are only a few video games written in Java? [closed]

... I find this dispute very strange. Java ME is not the same as Java in Android and also not the same as Java on PCs. Java ME usually relied on phone manufacturers to come up with a JVM. Some did good job, some didn't. No wonder Carmack was complaining about them. Android has it's own VM which is...
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Why should Java ThreadLocal variables be static

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What is the meaning and difference between subject, user and principal?

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Position an element relative to its container

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Isn't it silly that a tiny favicon requires yet another HTTP request? How can I put the favicon into

...se browsers can handle SVG Favicons: Chrome Firefox Edge Opera Chrome for Android KaiOS Browser Note that these browsers still can't: Safari iOS Safari Firefox for Android With the above in mind, we can now use SVG Favicons with a reasonable degree of confidence. 2) Present the SVG as a Data UR...
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What is array to pointer decay?

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