Tutorial by Examples: f

Powershell supports standard conditional logic operators, much like many programming languages. These allow certain functions or commands to be run under particular circumstances. With an if the commands inside the brackets ({}) are only executed if the conditions inside the if(()) are met $test =...

Templates require compile-time generation of code: a templated function, for example, will be effectively turned into multiple distinct functions once a templated function is parameterized by use in source code. This means that template function, member function, and class definitions cannot be del...

Tree structure: /sitecore /content /foo-site /home /my-account /bar-site /home /my-account /baz-site /home /my-account The template of each site item (foo-site, bar-site, b...

Overview The transpose function is one of Bosun's more powerful functions, but it also takes effort to understand. It is powerful because it lets us alert at different levels than the tag structure of the underlying data. Transpose changes the scope of your alert. This lets you scope things into l...

using System; [assembly:CLSCompliant(true)] namespace CLSDoc { public class Cat { internal UInt16 _age = 0; private UInt16 _daysTillVacination = 0; //Warning CS3003 Type of 'Cat.DaysTillVacination' is not CLS-compliant protected UInt16 DaysT...

using System; [assembly:CLSCompliant(true)] namespace CLSDoc { public class Car { internal UInt16 _yearOfCreation = 0; //Warning CS3008 Identifier '_numberOfDoors' is not CLS-compliant //Warning CS3003 Type of 'Car._numberOfDoors' is not CLS-compli...

using System; [assembly:CLSCompliant(true)] namespace CLSDoc { public class Car { //Warning CS3005 Identifier 'Car.CALCULATEAge()' differing only in case is not CLS-compliant public int CalculateAge() { return 0; } ...

using System; [assembly:CLSCompliant(true)] namespace CLSDoc { public class Car { //Warning CS3008 Identifier '_age' is not CLS-complian public int _age = 0; } } You can not start variable with _

using System; [assembly:CLSCompliant(true)] namespace CLSDoc { [CLSCompliant(false)] public class Animal { public int age = 0; } //Warning CS3009 'Dog': base type 'Animal' is not CLS-compliant public class Dog : Animal { } }

Breadth-first-search (BFS) is an algorithm for traversing or searching tree or graph data structures. It starts at the tree root (or some arbitrary node of a graph, sometimes referred to as a 'search key') and explores the neighbor nodes first, before moving to the next level neighbors. BFS was inve...

Most of the time, we'll need to find out the shortest path from single source to all other nodes or a specific node in a 2D graph. Say for example: we want to find out how many moves are required for a knight to reach a certain square in a chessboard, or we have an array where some cells are blocked...

In a const-correct function, all passed-by-reference parameters are marked as const unless the function directly or indirectly modifies them, preventing the programmer from inadvertently changing something they didn't mean to change. This allows the function to take both const and non-cv-qualified ...

;;Find the nth Fibonacci number for any n > 0. ;; Precondition: n > 0, n is an integer. Behavior undefined otherwise. (defun fibonacci (n) (cond ( ;; Base case. ;; The first two Fibonacci numbers (indices 1 and 2) are 1 by defin...

In most text editors, the standard shortcut for saving the current document is Ctrl+S (or Cmd+S on macOS). Vim doesn't have this feature by default but this can be mapped to make things easier. Adding the following lines in .vimrc file will do the job. nnoremap <c-s> :w<CR> inoremap &...

Copy paste this code and launch your program : @Theme(ValoTheme.THEME_NAME) //[optional] adds Vaadin built in theming public class SampleUI extends UI { @Override protected void init(VaadinRequest request) { final VerticalLayout rootLayout = new VerticalLayout(); Label...

The basic usage is: mysql> CREATE USER 'my_new_user'@'localhost' IDENTIFIED BY 'test_password'; However for situations where is not advisable to hard-code the password in cleartext it is also possible to specify directly, using the directive PASSWORD, the hashed value as returned by the PASS...

First import #import <QuartzCore/QuartzCore.h> into your ViewController class. Here is how I set my view in code UIView *view1=[[UIView alloc]init]; view1.backgroundColor=[UIColor colorWithRed:255/255.0 green:193/255.0 blue:72/255.0 alpha:1.0]; CGRect view1Frame = view1.frame; view1Frame....

Add a button you can tap to trigger a crash. Paste this code into your layout where you’d like the button to appear. <Button android:layout_height="wrap_content" android:layout_width="wrap_content" android:text="Force Crash!" android:onClick=&quo...

let inline getLength s = (^a: (member Length: _) s) //usage: getLength "Hello World" // or "Hello World" |> getLength // returns 11

// Record type Ribbon = {Length:int} // Class type Line(len:int) = member x.Length = len type IHaveALength = abstract Length:int let inline getLength s = (^a: (member Length: _) s) let ribbon = {Length=1} let line = Line(3) let someLengthImplementer = { new IHaveALength wit...