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Completion handler for UINavigationController “pushViewController:animated”?
...: Bool,
completion: @escaping (() -> Void)?) {
CATransaction.begin()
CATransaction.setCompletionBlock(completion)
pushViewController(viewController, animated: animated)
CATransaction.commit()
}
}
Usage:
navigationController?.pushViewControll...
What's the difference between @Secured and @PreAuthorize in spring security 3?
...ameDiscoverer):
@PreAuthorize("#contact.name == principal.name")
public void doSomething(Contact contact)
(Advanced feature) Add your own methods (override MethodSecurityExpressionHandler and set it as <global-method-security><expression-handler ... /></...>).
...
DbArithmeticExpression arguments must have a numeric common type
...>.
Entity Framwork core (when used with Sql Server, maybe other db providers) supports the DateTime AddXxx functions (like AddHours). They're translated into DATEADD in SQL.
*EntityFunctions prior to Entity Framework version 6.
...
How to abandon a hg merge?
...ht about when I figured it out myself. I'm in emacs, so M-x indent-region did the reindent trick.
– Grumdrig
Apr 3 '10 at 4:33
6
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Warning as error - How to rid these
I cannot figure out how to get rid of errors that basically should not be halting my compile in Visual Studio 2010 and should not be show stoppers, or at least I will fix them later, but I don't want the compile to just error and halt on these kinds of problems.
...
How to deal with “data of class uneval” error from ggplot2?
...
Another cause is accidentally putting the data=... inside the aes(...) instead of outside:
RIGHT:
ggplot(data=df[df$var7=='9-06',], aes(x=lifetime,y=rep_rate,group=mdcp,color=mdcp) ...)
WRONG:
ggplot(aes(data=df[df$var7=='9-06',],x=lifetime,y=...
Ruby on Rails: Delete multiple hash keys
...her_key))
Also, you wouldn't have to monkey patch, since the Rails team did it for you!
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Groovy / grails how to determine a data type?
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled...
How does “do something OR DIE()” work in PHP?
...
PHP's or works like C's || (which incidentally is also supported by PHP - or just looks nicer and has different operator precedence - see this page).
It's known as a short-circuit operator because it will skip any evaluations once it has enough information to d...
Make Heroku run non-master Git branch
...or Heroku debugging is commit something, push it to Heroku, then (if that didn't work) try something else, commit it (with git commit --amend), push that to Heroku (using the -f flag) and repeat until fixed. Once it's fixed, make sure the final --amend is a nice clean commit with a sensible message ...