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Shortcut for creating single item list in C#
... chaining.
public static List<T> WithItems(this List<T> list, params T[] items)
{
list.AddRange(items);
return list;
}
This would let you do this:
List<string> strings = new List<string>().WithItems("Yes");
or
List<string> strings = new List<string>...
Does java.util.List.isEmpty() check if the list itself is null? [duplicate]
... specified collection is empty.
* <p>
* Null returns true.
*
* @param coll the collection to check, may be null
* @return true if empty or null
* @since Commons Collections 3.2
*/
public static boolean isEmpty(Collection coll) {
return (coll == null || coll.isEmpty());
}
...
Converting String to “Character” array in Java
...s method take String as a argument and return the Character Array
/**
* @param sourceString
* :String as argument
* @return CharcterArray
*/
public static Character[] toCharacterArray(String sourceString) {
char[] charArrays = new char[sourceString.length()];
charArrays = sou...
Instantiate and Present a viewController in Swift
...n the same storyboard
/*
Helper to Switch the View based on StoryBoard
@param StoryBoard ID as String
*/
func switchToViewController(identifier: String) {
let viewController = self.storyboard?.instantiateViewControllerWithIdentifier(identifier) as! UIViewController
self.navigationControl...
Rails 4 LIKE query - ActiveRecord adds quotes
...
When using '?' in this way in rails it is converted to a parameterized query. The data within the parameter isn't sanitized (the %) but it is impossible to change context out of the query and turn it into processed SQL statements.
– David Hoelzer
...
How to set a Header field on POST a form?
... suggestion is to include either
a hidden form element
a query string parameter
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Get name of caller function in PHP?
...
debug_backtrace() supplies details of parameters, function/method calls in the current call stack.
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Trim a string based on the string length
...
The second param of substring is exclusive, so this answer trims the String to 9 characters.
– emulcahy
Dec 3 '13 at 20:09
...
Spring mvc @PathVariable
...ed by value 123 by spring
Also note that PathVariable differs from requestParam as pathVariable is part of URL.
The same url using request param would look like www.mydomain.com/order?orderId=123
API DOC
Spring Official Reference
...
Checking if a variable is an integer
...ing of number characters), say it was a credit card number passed into the params, so it would originally be a string but you want to make sure it doesn't have any letter characters in it, I would use this method:
def is_number?(obj)
obj.to_s == obj.to_i.to_s
end
is_number? "12...