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Count characters in textarea

... relevance of IDs of textarea and second span : id="post" <-> id="rem_post" and the title of the span that holds the desired characters amount of each particular textarea <textarea class="countit" name="post" id="post"></textarea> <p> <span>characters remaining: <...
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Avoiding memory leaks with Scalaz 7 zipWithIndex/group enumeratees

...ess1.chunk(4) pipe process1.fold(0L) { (c, vs) => c + vs.map(_._1.length.toLong).sum }).runLast.run This should work with any value for the n parameter (provided you're willing to wait long enough) -- I tested with 2^14 32MiB arrays (i.e., a total of half a TiB of memory allocated ...
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how to make svn diff show only non-whitespace line changes between two revisions

... can use svn diff -r 100:200 -x -b > file.diff If you want to ignore all whitespaces: svn diff -x -w | less Source share | improve this answer | follow ...
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Android search with Fragments

... to be a better answer: stackoverflow.com/questions/6938952/… This will allow "searching" from within Fragments. True, it's not the official search mechanism provided by Google, but it works just fine. – Kyle Falconer Aug 5 '13 at 19:19 ...
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Android. WebView and loadData

...lString, "text/html; charset=UTF-8", null); This works flawlessly, especially on Android 4.0, which apparently ignores character encoding inside HTML. Tested on 2.3 and 4.0.3. In fact, I have no idea about what other values besides "base64" does the last parameter take. Some Google examples put ...
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How to test if a string is JSON or not?

I have a simple AJAX call, and the server will return either a JSON string with useful data or an error message string produced by the PHP function mysql_error() . How can I test whether this data is a JSON string or the error message. ...
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UITapGestureRecognizer - single tap and double tap

...UITapGestureRecognizer(target: self, action:#selector(self.singleTapAction(_:))) singleTap.numberOfTapsRequired = 1 view.addGestureRecognizer(singleTap) let doubleTap = UITapGestureRecognizer(target: self, action:#selector(self.doubleTapAction(_:))) doubleTap.numberOfTapsRequired = 2 view.addGestur...
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Remove non-utf8 characters from string

...eplacement is whatever was captured into group 1. This effectively removes all invalid bytes. It is possible to repair the string, by encoding the invalid bytes as UTF-8 characters. But if the errors are random, this could leave some strange symbols. $regex = <<<'END' / ( (?: [\x00-...
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LINQ: Select an object and change some properties without creating a new object

...erties of a LINQ query result object without creating a new object and manually setting every property. Is this possible? ...
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Difference between TCP and UDP?

...TCP is a connection oriented stream over an IP network. It guarantees that all sent packets will reach the destination in the correct order. This imply the use of acknowledgement packets sent back to the sender, and automatic retransmission, causing additional delays and a general less efficient tra...