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Use of Application.DoEvents()
...he enduring mystique of DoEvents(). There's been an enormous amount of backlash against it, but nobody ever really explains why it is "bad". The same kind of wisdom as "don't mutate a struct". Erm, why does the runtime and the language supports mutating a struct if that's so bad? Same reason: yo...
Save image from URL by paperclip
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Nicolas BlancoNicolas Blanco
10.2k55 gold badges3434 silver badges4949 bronze badges
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Prevent segue in prepareForSegue method?
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In your view controller. You do your validation there, and if it's OK then return YES; if it's not then return NO; and the prepareForSegue is not called.
Note that this method doesn't get called automatically when triggering segues programmatically. If you need to perform the check, then you...
Getting rid of \n when using .readlines() [duplicate]
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The url proposed from @bfrederix is broken. Here an archive.org copy web.archive.org/web/20160215030807/http://axialcorps.com/2013/…
– Paolo Melchiorre
Oct 24 '18 at 9:45
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Is it possible for a computer to “learn” a regular expression by user-provided examples?
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The book An Introduction to Computational Learning Theory contains an algorithm for learning a finite automaton. As every regular language is equivalent to a finite automaton, it is possible to learn some regular expressions by a pr...
Why should a function have only one exit-point? [closed]
...ly a single exit point - you have a single path through the method and you know where to look for the exit. On the minus side if you use indentation to represent nesting, your code ends up massively indented to the right, and it becomes very difficult to follow all the nested scopes.
Another is tha...
How do I make my string comparison case insensitive?
... Locale specific case rules are at least implemented for Turkish and German. Turkish treat I with and without dot as two different letters, creating the lower/upper case pairs iİ and ıI while other languages treat iI as a pair and do not use the letters ı and İ. In German, the low...
Disable XML validation in Eclipse
My Eclipse validates XML files every time I save a file and it takes a while to validate them.
The project is created using gwt-maven-plugin.
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How to prevent form from being submitted?
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Unlike the other answers, return false is only part of the answer. Consider the scenario in which a JS error occurs prior to the return statement...
html
<form onsubmit="return mySubmitFunction(event)">
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</form>...
How can I delete Docker's images?
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In order to delete all images, use the given command
docker rmi $(docker images -q)
In order to delete all containers, use the given command
docker rm $(docker ps -a -q)
Warning: This will destroy all your images and containers. It will not be possible to restore them!
This ...