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Usage of protocols as array types and function parameters in swift
...
You want to create a generic class, with a type constraint that requires the classes used with it conform to SomeProtocol, like this:
class SomeClass<T: SomeProtocol> {
typealias ElementType = T
var protocols = [ElementType]()
func addElement(element: ElementT...
Turning a Comma Separated string into individual rows
...ions from SQL Server:
Sample table:
CREATE TABLE Testdata
(
SomeID INT,
OtherID INT,
String VARCHAR(MAX)
)
INSERT Testdata SELECT 1, 9, '18,20,22'
INSERT Testdata SELECT 2, 8, '17,19'
INSERT Testdata SELECT 3, 7, '13,19,20'
INSERT Testdata SELECT 4, 6, ''
INSERT Testdata SELECT ...
What is the reason behind cbegin/cend?
I wonder why cbegin and cend were introduced in C++11?
7 Answers
7
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PHP: How to generate a random, unique, alphanumeric string for use in a secret link?
...et/manual/en/function.random-bytes.php
PHP 5 (outdated)
I was just looking into how to solve this same problem, but I also want my function to create a token that can be used for password retrieval as well. This means that I need to limit the ability of the token to be guessed. Because uniqid is bas...
Can I multiply strings in Java to repeat sequences? [duplicate]
...the rest.
Here's a sample to copy and paste:
public static String repeat(int count, String with) {
return new String(new char[count]).replace("\0", with);
}
public static String repeat(int count) {
return repeat(count, " ");
}
public static void main(String[] args) {
for (int n = 0; ...
What does the “map” method do in Ruby?
...example:
names = ['danil', 'edmund']
# here we map one array to another, convert each element by some rule
names.map! {|name| name.capitalize } # now names contains ['Danil', 'Edmund']
names.each { |name| puts name + ' is a programmer' } # here we just do something with each element
The output:...
Runtime vs. Compile time
...
The difference between compile time and run time is an example of what pointy-headed theorists call the phase distinction. It is one of the hardest concepts to learn, especially for people without much background in programming languages. To approach this problem, I find it helpful to ask
What...
How to get Spinner value?
... String that is displayed to the user), but not its value if you mapped an int array onto the spinner for example.
– A. Steenbergen
Feb 5 '15 at 13:58
...
Remove the last three characters from a string
...ove the last three characters from the string you can use string.Substring(Int32, Int32) and give it the starting index 0 and end index three less than the string length. It will get the substring before last three characters.
myString = myString.Substring(0, myString.Length-3);
String.Substri...
How to add leading zeros?
...
Note that sprintf converts numeric to string (character).
– aL3xa
Apr 28 '11 at 8:54
...