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How do you configure an OpenFileDialog to select folders?
...ion does not work on VS2010 and VS2017 either!
– AleX_
Apr 13 '17 at 14:11
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Can't find a “not equal” css attribute selector
... only want div elements that have an attribute foo that is set to an empty string, you should use:
div[foo]:not([foo=''])
If you want all elements with attribute foo that is neither y nor z, you should use:
div[foo]:not([foo='y']):not([foo='z'])
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Conditionally start at different places in storyboard from AppDelegate
...troller, and send the performSegueWithIdentifier:sender: message to it:
NSString *segueId = success ? @"pushMain" : @"pushLogin";
[self.window.rootViewController performSegueWithIdentifier:segueId sender:self];
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How to version REST URIs
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The client receives a URI it wants to follow, and treats it as an opaque string. Put whatever you want in it, the client has no knowledge of such a thing as a version identifier on it.
What the client knows is that it can process the media type, and I'll advise to follow Darrel's advice. Also I p...
Reference assignment operator in PHP, =&
...ion 6.2:
All binary arithmetic, comparison, assignment, bitwise, logical, string, and type operators MUST be preceded and followed by at least one space
By this rule, there should always be a space after the = operator -- this makes =& a violation.
Furthermore, there are other rules that state...
How do you make a WPF slider snap only to discrete integer positions?
... will show decimals. If you also bind to an int at the same time the empty string will cause a conversion exception to be thrown that briefly bogs down the UI. These issues haven't been severe enough for me to look for solutions.
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Is it a good idea to index datetime field in mysql?
... for all cases. Yes, storing an integer is generally faster than storing a string, but what about all the DateTime functions MySQL exposes? Implementing them yourself would either have a negative effect on performance or functionality.
– Greg
Sep 26 '13 at 12:1...
xpath find if node exists
...using xpath in Java using count():
int numberofbodies = Integer.parseInt((String) xPath.evaluate("count(/html/body)", doc));
if( numberofbodies==0) {
// body node missing
}
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Compare if two variables reference the same object in python
...ng to do with the object itself. It's easy to have immuteable objects like strings that are equal but not stored at the same location, for example ''a'*10000 is 'a' * 10000 is False.
– Jochen Ritzel
Apr 10 '17 at 13:43
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What are the best use cases for Akka framework [closed]
... We have millions of these and the effort of the work depends on the input string type. If the transaction is of type CHECK we have very little processing but if it is a point of sale then there is lots to do such as merge with meta data (category, label, tags, etc) and provide services (email/sms a...