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How to prevent form resubmission when page is refreshed (F5 / CTRL+R)

...just implementing the Post / Redirect / Get pattern, so, I don't remember now what exactly was tripping me up. Thanks again for circling back, though. – aLearner Jun 29 '13 at 11:07 ...
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SSH to Elastic Beanstalk instance

... Elastic beanstalk CLI v3 now supports direct SSH with the command eb ssh. E.g. eb ssh your-environment-name No need for all the hassle of setting up security groups of finding out the EC2 instance address. There's also this cool trick: eb ssh -...
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Combine two data frames by rows (rbind) when they have different sets of columns

...f2), names(df1))] <- NA df2[setdiff(names(df1), names(df2))] <- NA Now, rbind-em rbind(df1, df2) a b d c 1 1 6 January <NA> 2 2 7 February <NA> 3 3 8 March <NA> 4 4 9 April <NA> 5 5 10 May <NA> 6 6 16 <NA> ...
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Developing cross platform mobile application [closed]

... @TechZen -- I'm using StackOverflow now on my web browser and don't see any reason to look for a native client. I think you over generalize your claims. – Youval Bronicki Jun 16 '11 at 4:50 ...
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How to generate XML file dynamically using PHP?

...ree. For reference you can read http://it.php.net/manual/en/book.dom.php Now we will take a quick tour of the code below. at line 2 we create an empty xml document (just specify xml version (1.0) and encoding (utf8)) now we need to populate the xml tree: We have to create an xmlnode (line 5...
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Can I run javascript before the whole page is loaded?

...t> <p>Paragraph 2</p> Notice how they're both green now; the code didn't run until HTML parsing was complete. That would also be true with a defer script with external content (but not inline content). (There was no need for the NodeList check there because any modern browser...
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Does Javascript pass by reference? [duplicate]

...er to a function, it behaves as if I simply assigned it to a new variable. Now, let's do the same thing, but with a function instead of a simple assignment function myFunc(sameString) { // Re assignment.. again, it will not modify myString sameString = 'New string'; } var myString = 'Test ...
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Difference between Pragma and Cache-Control headers?

...that actually might mean to returning stale content to the clients, WHAT?? Now you forget this and read the above simple answer and enjoy your life, don't dig it too hard lol – sotn Mar 3 '16 at 21:29 ...
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Requirejs domReady plugin vs Jquery $(document).ready()?

I am using RequireJS and need to initialize something on DOM ready. Now, RequireJS provides the domReady plugin , but we already have jQuery's $(document).ready() , which is available to me since I have required jQuery. ...
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Technically what is the main difference between Oracle JDK and OpenJDK? [duplicate]

...ince I started to play with it for big toys, I started to notice random/unknown fatal error and crashes (with H.264 codecs, etc.), and it was a nightmare till then to get ride of system crash+fatal errors caused by OpenJDK. ...