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What is the equivalent of Java's final in C#?
...e - failing to assign V or assigning V two or more times will result in an error.
C#'s readonly keyword has no such guarantee - the compiler is more than happy to leave readonly members unassigned or allow you to assign them multiple times within a constructor.
So, final and readonly (at least wit...
How can I import Swift code to Objective-C?
...that if you try to use the Swift filename in your import, you will get the error "Expected ';' after top level declarator". in your Swift file after "import Foundation".
– louielouie
Jun 9 '14 at 22:10
...
Can Protractor and Karma be used together?
...t immediate feedback, which is brilliant! The only negative is the "noisy" error reporting that will hopefully improve!
Karma is not only for unit tests
Unit test is for a single unit of your source code. In Angular's case a typical unit is Angular Component (Service, Factory, Provider, Controll...
Changing one character in a string
...d be bytearray(s), not bytearray(str). For another, this will produce: TypeError: string argument without an encoding. If you specify an encoding, then you get TypeError: an integer is required. That's with Python 3 or Python 2's unicode. If you do this in Python 2 (with a corrected second line), it...
A numeric string as array key in PHP
...ough. Add this line to your example: echo $data['12'];. It will give the error, "Notice: Undefined offset: 12 in - on line 5".
– L S
May 29 '16 at 9:47
...
AngularJs event to call after content is loaded
....formName.elementName.$setValidity("validateRule", false); will throw "TypeError: Cannot read property 'elementName' of undefined"
– Mussammil
Oct 14 '15 at 6:04
...
How do I implement a callback in PHP?
... be called directly
$cb2 = 'ClassName::someStaticMethod';
$cb2(); // fatal error
// legacy syntax for PHP 4
$cb3 = array(&$object, 'somePublicMethod');
This is a safe way to use callable values in general:
if (is_callable($cb2)) {
// Autoloading will be invoked to load the class "ClassNa...
Pointer arithmetic for void pointer in C
... MSVC) disallow arithmetic on void*, and GCC disallows it if the -pedantic-errors flag is specified, or if the -Werror-pointer-arith flag is specified (this flag is useful if your code base must also compile with MSVC).
The C Standard Speaks
Quotes are taken from the n1256 draft.
The standard's d...
Running Composer returns: “Could not open input file: composer.phar”
...
Since you are executing php composer.phar update, and you are getting the error Could not open input file: composer.phar, you probably don't have composer.phar in your current directory.
Solution
If you have Composer installed globally, simply run composer update instead of php composer.phar upda...
Unix command to find lines common in two files
...ve the temporary files afterwards, and cope with cleaning up in case of an error. In many scenarios, the process substitution will also be a lot quicker because you can avoid the disk I/O as long as the results fit into memory.
– tripleee
Dec 8 '17 at 5:41
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