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Delegates in swift?
... I right please edit it. Btw you can make it optional value. That would be more swift. weak var delegate:FooTwoViewControllerDelegate? PS: delegate should be weak cus of retain circle, child shouldynt keep strong reference to parent
– Shial
Nov 1 '14 at 13:04
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What is the purpose of a stack? Why do we need it?
...ite the code generator for it twenty times, one for each language.
Furthermore, it is difficult and dangerous work. Writing efficient code generators for chips that you are not an expert on is a hard job! Compiler designers are experts on the semantic analysis of their language, not on efficient re...
Git-Based Source Control in the Enterprise: Suggested Tools and Practices?
...on your context. It is the common conception, that using a DVCS requires a more disciplined team than using a centralized system. This is because a centralized system provides you with an easy way to enforce your workflow, using a decentralized system requires more communication and discipline to st...
How do I get SUM function in MySQL to return '0' if no values are found?
...ion, please see this sql fiddle: http://www.sqlfiddle.com/#!2/d1542/3/0
More Information:
Given three tables (one with all numbers, one with all nulls, and one with a mixture):
SQL Fiddle
MySQL 5.5.32 Schema Setup:
CREATE TABLE foo
(
id INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
val IN...
Making a triangle shape using xml definitions?
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Can't start Eclipse - Java was started but returned exit code=13
... 64-bit Windows places 64-bit programs.
This can happen when a system has more than one JVM installed, as is often the case on Windows 64-bit (for example, the JRE download page uses the bit-ness of the browser to determine what bit-ness download to offer you, and many people use(d) 32-bit browsers...
Difference between “on-heap” and “off-heap”
...ance using memory mapped files
Edit: For some scenarios one might choose more sophisticated Garbage Collection algorithms such as ConcurrentMarkAndSweep or G1 to support larger heaps (but this also has its limits beyond 16GB heaps). There is also a commercial JVM with improved 'pauseless' GC (Azul...
Setting environment variables on OS X
...ies to MacOS X 10.5. However MacOS X 10.6 does not have this limitation anymore and setting the values inside environment.plist works fine even for apps launched via spotlight. So the selected answer is correct for Snow Leopard ;-)
– Louis Jacomet
Jun 9 '10 at ...
What is the difference between JAX-RS and JAX-WS?
... it communicates.
On the point about WSDL and API definitions, REST will more frequently use the URI structure and HTTP commands to define the API rather than message types, as is done in the JAX-WS. This means that you don't need to publish a WSDL document so that other users of your service can ...
What's the _ underscore representative of in Swift References?
...
Both answers were correct but I want to clarify a little bit more.
_ is used to modify external parameter name behavior for methods.
In Local and External Parameter Names for Methods section of the documentation, it says:
Swift gives the first parameter name in a method a local p...