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What are best practices for validating email addresses on iOS 2.0
... *) candidate {
NSString *emailRegex =
@"(?:[a-z0-9!#$%\\&'*+/=?\\^_`{|}~-]+(?:\\.[a-z0-9!#$%\\&'*+/=?\\^_`{|}"
@"~-]+)*|\"(?:[\\x01-\\x08\\x0b\\x0c\\x0e-\\x1f\\x21\\x23-\\x5b\\x5d-\\"
@"x7f]|\\\\[\\x01-\\x09\\x0b\\x0c\\x0e-\\x7f])*\")@(?:(?:[a-z0-9](?:[a-"
@"z0-9-]*[a-z0-9])?\\.)+[a-z0-...
What does “SyntaxError: Missing parentheses in call to 'print'” mean in Python?
...lt;module>
TypeError: unsupported operand type(s) for >>: 'builtin_function_or_method' and '_io.TextIOWrapper'. Did you mean "print(<message>, file=<output_stream>)"?
Since this error is raised when the code runs, rather than when it is compiled, it doesn't have access to the ...
How to link to apps on the app store
... see Apple QA1633:
https://developer.apple.com/library/content/qa/qa1633/_index.html.
Edit (as of January 2015):
itunes.com/apps links should be updated to appstore.com/apps. See QA1633 above, which has been updated. A new QA1629 suggests these steps and code for launching the store from an app...
How to reset db in Django? I get a command 'reset' not found error
...owing this Django by Example tutotrial here: http://lightbird.net/dbe/todo_list.html
10 Answers
...
Explanation of BASE terminology
...the requirements for immediate consistency, data freshness and accuracy in order to gain other benefits, like scalability and resiliency.
BASE stands for -
Basic Availability - The database appears to work most of the time.
Soft-state - Stores don't have to be write-consistent, nor do different...
What is the Scala annotation to ensure a tail recursive function is optimized?
...e to Scala version 2.8.0.RC5 (Java HotSpot(TM) 64-Bit Server VM, Java 1.6.0_18).
Type in expressions to have them evaluated.
Type :help for more information.
scala> import scala.annotation.tailrec
import scala.annotation.tailrec
scala> class Tails {
| @tailrec def boom(x: Int): Int = {
...
Writing handler for UIAlertAction
...
{alert in println("Foo")}, {_ in println("Foo")}, and {println("Foo")} should also work.
– Brian Nickel♦
Jun 12 '14 at 17:44
7
...
Vertically centering a div inside another div [duplicate]
...
+1, but it curiously depends on the order of positions. Starting bottom: 0; left: 0; gets the inner div stuck on the bottom of the parent (Chrome 33, anyways).
– Patrick M
Apr 6 '14 at 16:58
...
What difference is there between WebClient and HTTPWebRequest classes in .NET?
...FtpWebRequest, depend on your request. Below is an example:
Example:
var _request = (HttpWebRequest)WebRequest.Create("http://stackverflow.com");
var _response = (HttpWebResponse)_request.GetResponse();
WebClient
System.Object
System.MarshalByRefObject
System.ComponentModel....
`from … import` vs `import .` [duplicate]
... for simplicity or to avoid masking built ins:
from os import open as open_
# lets you use os.open without destroying the
# built in open() which returns file handles.
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