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Sending a message to nil in Objective-C

...I wonder what " sending a message to nil " means - let alone how it is actually useful. Taking an excerpt from the documentation: ...
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Overriding a JavaScript function while referencing the original

...tioned in the comments, be sure to include the () at the end. You want to call the outer function and store the result (one of the two inner functions) in a, not store the outer function itself in a. share | ...
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Can PHP cURL retrieve response headers AND body in a single request?

...R, 1); // ... $response = curl_exec($ch); // Then, after your curl_exec call: $header_size = curl_getinfo($ch, CURLINFO_HEADER_SIZE); $header = substr($response, 0, $header_size); $body = substr($response, $header_size); Warning: As noted in the comments below, this may not be reliable when used ...
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How to turn NaN from parseInt into 0 for an empty string?

...h for other stuff, there's a handy defaultTo function that does just this: _.defaultTo(NaN, -1) returns -1, but _.defaultTo(0, -1); returns 0. – waldyrious Dec 6 '18 at 12:40 ...
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How to output in CLI during execution of PHP Unit tests?

... } } This lets you dump anything to your console at any time without all the unwanted output that comes along with the --verbose CLI option. As other answers have noted, it's best to test output using the built-in methods like: $this->expectOutputString('foo'); However, sometimes it's...
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UITapGestureRecognizer - single tap and double tap

...UITapGestureRecognizer(target: self, action:#selector(self.singleTapAction(_:))) singleTap.numberOfTapsRequired = 1 view.addGestureRecognizer(singleTap) let doubleTap = UITapGestureRecognizer(target: self, action:#selector(self.doubleTapAction(_:))) doubleTap.numberOfTapsRequired = 2 view.addGestur...
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How do I create a unique ID in Java? [duplicate]

... It's not all that human readable tho... – pjp Sep 7 '09 at 14:56 13 ...
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Routing for custom ASP.NET MVC 404 Error page

... Just add catch all route at the end of the routes table and display whatever page you want with it. See: How can i make a catch all route to handle '404 page not found' queries for ASP.NET MVC? ...
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How Big can a Python List Get?

...ents. As long as the number of elements you have is equal or below this, all list functions should operate correctly. share | improve this answer | follow | ...
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Apache: “AuthType not set!” 500 Error

... Remove the line that says Require all granted it's only needed on Apache >=2.4 share | improve this answer | follow ...