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What is SELF JOIN and when would you use it? [duplicate]
What is self join and when would you use it? I don't understand self joins so a layman explanation with an example would be great.
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@selector() in Swift?
... chaining on protocol types or is/as tests instead of respondsToSelector:, and use closures wherever you can instead of performSelector: for better type/memory safety.)
But there are still a number of important ObjC-based APIs that use selectors, including timers and the target/action pattern. Swift...
PowerShell Script to Find and Replace for all Files with a Specific Extension
...t all worked, but this one was the easiest for readability. I was able to hand this to a co-worker and he could easily understand what was going on. Thanks for the assistance.
– Brandon
May 18 '10 at 18:37
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How can I implement prepend and append with regular JavaScript?
How can I implement prepend and append with regular JavaScript without using jQuery?
11 Answers
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Regex: Remove lines containing “help”, etc
I have a long document of commands. Using Notepad++ or regex, I want to delete all lines containing "help" including keyboard_help, etc.
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What is setup.py?
Can anyone please explain what setup.py is and how it can be configured or used?
10 Answers
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Bypass popup blocker on window.open when JQuery event.preventDefault() is set
... url: url,
dataType: 'json',
data: data,
success: callback
});
...and so you can make your $.getJSON call synchronous by mapping your params to the above and adding async: false:
$.ajax({
url: "redirect/" + pageId,
async: false,
dataType: "json",
data: {},
s...
REST / SOAP endpoints for a WCF service
I have a WCF service and I want to expose it as both a RESTfull service and as a SOAP service.
Anyone has done something like this before?
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Inline labels in Matplotlib
...below). This can be very fiddly, because I have to specify coordinates by hand, and, if I re-format the plot, I probably have to reposition the labels. Is there a way to automatically generate labels on curves in Matplotlib? Bonus points for being able to orient the text at an angle corresponding to...
Prevent segue in prepareForSegue method?
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It's possible in iOS 6 and later:
You have to implement the method
- (BOOL)shouldPerformSegueWithIdentifier:(NSString *)identifier sender:(id)sender
In your view controller. You do your validation there, and if it's OK then return YES; if it's...