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How to find a min/max with Ruby
... rumblings that Ruby 2.4 is optimizing [a,b].max, but it's still not clear if it's faster than the above implementation. blog.bigbinary.com/2016/11/17/…
– Dave Morse
May 26 '17 at 21:48
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Scala: List[Future] to Future[List] disregarding failed futures
...te: You can use Option or Either as well here, but Try is the cleanest way if you specifically want to trap exceptions
def futureToFutureTry[T](f: Future[T]): Future[Try[T]] =
f.map(Success(_)).recover { case x => Failure(x)}
val listOfFutures = ...
val listOfFutureTrys = listOfFutures.map(fu...
ContextLoaderListener or not?
...'s no reason to keep the ContextLoaderListener and applicationContext.xml. If your app works fine with just the servlet's context, that stick with that, it's simpler.
Yes, the generally-encouraged pattern is to keep non-web stuff in the webapp-level context, but it's nothing more than a weak conven...
Setting href attribute at runtime
...ttp://example.com');
In both cases, please use the appropriate selector. If you have set the class for the anchor element, use '.class-name' and if you have set the id for the anchor element, use '#element-id'.
share
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UML class diagram enum
...in UML, so typically Associations aren't shown any more than they would be if you declared an attribute to be of type Integer. If your modeling tool has explicit support for enumerations, you should use that and only use the Class + <<enumeration>> stereotype notation as a fallback if n...
Difference between \A \z and ^ $ in Ruby regular expressions
...
If you're depending on the regular expression for validation, you always want to use \A and \z. ^ and $ will only match up until a newline character, which means they could use an email like me@example.com\n<script>dang...
Can existing virtualenv be upgraded gracefully?
....5 unless I absolutely needed to do 2.6. That need arose, so I was curious if you could upgrade an isolated environment to see the effects on your code, without having to rebuild and copy/paste directories to the new env.
– Matt Norris
Feb 2 '10 at 1:16
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Get all keys of an NSDictionary as an NSArray
Is it possible to get all the keys from a specific NSDictionary as a seperate NSArray ?
3 Answers
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How to perform a real time search and filter on a HTML table
...l allow you to search words in any order in the row. It will work the same if you type apple green or green apple:
var $rows = $('#table tr');
$('#search').keyup(function() {
var val = '^(?=.*\\b' + $.trim($(this).val()).split(/\s+/).join('\\b)(?=.*\\b') + ').*$',
reg = RegExp(val, 'i'...
Find mouse position relative to element
...sing to understand what your browser sees as the parent. Here, you can specify which parent.
You take the mouse position, and then subtract it from the parent element's offset position.
var x = evt.pageX - $('#element').offset().left;
var y = evt.pageY - $('#element').offset().top;
If you're trying...