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How to implement “select all” check box in HTML?

... 316 <script language="JavaScript"> function toggle(source) { checkboxes = document.getEleme...
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Why does typeof NaN return 'number'?

... 21 Answers 21 Active ...
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JS: Check if date is less than 1 hour ago?

Is there a way to check if a date is less than 1 hour ago? 7 Answers 7 ...
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Get application version name using adb

... 185 adb shell dumpsys package my.package | grep versionName as mentioned by @david and @Jeremy F...
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How do I iterate through the files in a directory in Java?

... answered Jul 1 '10 at 1:13 BalusCBalusC 953k341341 gold badges34183418 silver badges34043404 bronze badges ...
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How to sort a list in Scala by two fields?

... 217 rows.sortBy(r => (r.lastName, r.firstName)) ...
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Heroku free account limited?

... Heroku provides, for free, a 5MB database Heroku provides, for free, 1 dyno. A dyno is an instance of your application running and responding to requests. If each instance of your application can serve each request in 100ms, then you get 600 requests/minute with the free account. Your applica...
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Timeout command on Mac OS X?

... 130 You can use brew install coreutils And then whenever you need timeout, use gtimeout ..i...
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Possible Loss of Fraction

... 169 When you divide two int's into a floating point value the fraction portion is lost. If you cas...
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Maintain the aspect ratio of a div with CSS

... 1388 Just create a wrapper <div> with a percentage value for padding-bottom, like this: ...