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JavaScript equivalent of jQuery's extend method

...e default object. Each of those objects contains properties that essentially work as settings for the rest of the code within the function. In order to prevent having to specify all of the settings within the config object, I use jQuery's extend method to fill in a new object, settings wit...
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How to tell if a string is not defined in a Bash shell script

... not set, you can use: if [ -z "${VAR+xxx}" ]; then echo VAR is not set at all; fi if [ -z "$VAR" ] && [ "${VAR+xxx}" = "xxx" ]; then echo VAR is set but empty; fi You probably can combine the two tests on the second line into one with: if [ -z "$VAR" -a "${VAR+xxx}" = "xxx" ]; then echo VA...
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“cannot resolve symbol R” in Android Studio

In every instance in all of my classes where I reference R.id.something , the R is in red and it says "cannot resolve symbol R". Also every time there is R.layout.something it is underlined in red and says "cannot resolve method setContentView(?)". The project always builds fine. It is annoyin...
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Where does forever store console.log output?

I installed forever and am using it, finding it quite funny. 11 Answers 11 ...
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Switch statement for greater-than/less-than

...for Windows was 10ms instead of 1ms. if-immediate This is the fastest in all tested environments, except in ... drumroll MSIE! (surprise, surprise). This is the recommended way to implement it. if (val < 1000) { /*do something */ } else if (val < 2000) { /*do something */ } else ... if (val...
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After array_filter(), how can I reset the keys to go in numerical order starting at 0

... If you call array_values on your array, it will be reindexed from zero. share | improve this answer | follo...
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When to use Vanilla JavaScript vs. jQuery?

... there are certain practices using javascript, instead of jQuery, that actually enable you to write less and do ... well the same amount. And may also yield performance benefits. ...
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What is REST? Slightly confused [closed]

...ps go over it a few times slowly, but you will grasp the concept, it's actually not hard at all. People just have a tendency to explain it poorly. – Anders Jan 12 '11 at 0:01 ...
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Regex for numbers only

I haven't used regular expressions at all, so I'm having difficulty troubleshooting. I want the regex to match only when the contained string is all numbers; but with the two examples below it is matching a string that contains all numbers plus an equals sign like "1234=4321". I'm sure there's a way...
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Akka Kill vs. Stop vs. Poison Pill?

...fference between Akka Stop/Poison Pill vs. Kill ? The book offers just a small explaination "Kill is synchronous vs. Poison pill is asynchronous." But in what way? Does the calling actor thread lock during this time? Are the children actors notified during kill, post-stop envoked, etc? Example uses ...