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NULL vs nil in Objective-C
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nil should only be used in place of an id, what we Java and C++ programmers would think of as a pointer to an object. Use NULL for non-object pointers.
Look at the declaration of that method:
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object
change:(NSDi...
Launch an app from within another (iPhone)
...app?, For example in my application if I want the user to push a button and launch right into the Phone app (close the current app, open the Phone app) .
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How to call a function from a string stored in a variable?
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Also see my answer below if you are dealing with classes and methods. I didn't expect what I found.
– Chris K
Jan 28 '13 at 23:16
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How do I get the currently displayed fragment?
I am playing with fragments in Android.
50 Answers
50
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Setting focus on an HTML input box on page load
... @PeterMortensen when I tested this 9 years ago was on firefox, chrome and ie :)
– Saikios
Jul 1 '19 at 16:34
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Http 415 Unsupported Media type error with JSON
I am calling a REST service with a JSON request and it responds with a HTTP 415 "Unsupported Media Type" error.
15 Answe...
Choosing the best concurrency list in Java [closed]
...y thread pool has a fixed number of threads. These threads need to write and read from a shared list frequently.
6 Ans...
How to get full path of selected file on change of using javascript, jquery-ajax
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And yet it got me the URL for the path to send to the server
– Amir Tugi
Oct 20 '16 at 19:08
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No 'Access-Control-Allow-Origin' - Node / Apache Port Issue
i've created a small API using Node/Express and trying to pull data using Angularjs but as my html page is running under apache on localhost:8888 and node API is listen on port 3000, i am getting the No 'Access-Control-Allow-Origin'. I tried using node-http-proxy and Vhosts Apache but not having ...
How to echo or print an array in PHP?
...($array) to get more information of the content in the array like datatype and length.
3) you can loop the array using php's foreach(); and get the desired output. more info on foreach in php's documentation website:
http://in3.php.net/manual/en/control-structures.foreach.php
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