Tutorial by Examples: co

# encode/decode UTF-8 for files and standard input/output use open qw( :encoding(UTF-8) :std ); This pragma changes the default mode of reading and writing text ( files, standard input, standard output, and standard error ) to UTF-8, which is typically what you want when writing new application...

to_upper(): #include <iostream> #include <string> #include <boost/algorithm/string.hpp> using namespace std; int main() { // String to convert characters to uppercase string str = "ThIS iS SUpPoSEd tO Be UpPeR CAsE."; // Convert characters i...

Objective-C NSMutableAttributedString *str = [[NSMutableAttributedString alloc] initWithString:@"Hello. That is a test attributed string."]; [str addAttribute:NSBackgroundColorAttributeName value:[UIColor yellowColor] range:NSMakeRange(3,5)]; [str addAttribute:NSForegroundColorAttrib...

So far, we defined how easy it is to write a custom element that hides the messy html behind it and gives the user, an easy to write and brief markup. Time to code it! Our custom element, to display the bar below the hero image should Accept a Link to be shared Accept a Link to the Repo to be ...

<link rel="import" href="../bower_components/iron-icon/iron-icon.html"> <link rel="import" href="../bower_components/iron-icons/iron-icons.html"> <link rel="import" href="../bower_components/iron-icons/social-icons.html"&gt...

On whichever page you want to display your product / project portfolio, invoke the custom element like so: <article id="project-neighbourhood"> <div class="row"> <div class="col-12 hero"> <img src="path-to-hero-image...

IF you are using simple categories, with each physics body belonging to only one category, then this alternative form of didBeginContact may be more readable: func didBeginContact(contact: SKPhysicsContact) { let contactMask = contact.bodyA.categoryBitMask | contact.bodyB.categoryBitMask ...

Here is a simple Sprite-Kit GameScene.swift. Create a new, empty SpriteKit project and replace the GameScene.swift with this. Then build and run. Click on any of the objects on screen to give make them move. Check the logs and the comments to see which ones collide and which ones make contact. // ...

Dictionaries are great for managing information where multiple entries occur, but you are only concerned with a single value for each set of entries — the first or last value, the mininmum or maximum value, an average, a sum etc. Consider a workbook that holds a log of user activity, with a script ...

Counting sort is an integer sorting algorithm for a collection of objects that sorts according to the keys of the objects. Steps Construct a working array C that has size equal to the range of the input array A. Iterate through A, assigning C[x] based on the number of times x appeared in A. Tr...

View tables ActiveRecord::Base.connection.tables Delete any table. ActiveRecord::Base.connection.drop_table("users") ------------OR---------------------- ActiveRecord::Migration.drop_table(:users) ------------OR--------------------- ActiveRecord::Base.connect...

Most examples of a function returning a value involve providing a pointer as one of the arguments to allow the function to modify the value pointed to, similar to the following. The actual return value of the function is usually some type such as an int to indicate the status of the result, whether ...

String to immutable ubyte[] string s = "unogatto"; immutable(ubyte[]) ustr = cast(immutable(ubyte)[])s; assert(typeof(ustr).stringof == "immutable(ubyte[])"); assert(ustr.length == 8); assert(ustr[0] == 0x75); //u assert(ustr[1] == 0x6e); //n assert(ustr[2] == 0x6f); //o...

Inside a Project configuration, you can Create build configuration: Manually Provide a Name and a Description. The Build Configuration ID is generated from the ProjectName, and the Build Configuration Name's. Once your configuraion is Saved, you can specify a Version Control Settings. This will ...

// Let's take an arbitrary piece of data, a 4-byte integer in this case let some_data: u32 = 14; // Create a constant raw pointer pointing to the data above let data_ptr: *const u32 = &some_data as *const u32; // Note: creating a raw pointer is totally safe but dereferencing a raw pointe...

Objective-C Just log this see how to use a particular filter NSArray *properties = [CIFilter filterNamesInCategory:kCICategoryBuiltIn]; for (NSString *filterName in properties) { CIFilter *fltr = [CIFilter filterWithName:filterName]; NSLog(@"%@", [fltr a...

Presumably the simplest way to use compose is with a View only. This allows you to include HTML templates without the need to declare a ViewModel with bindable properties for each of them, making it easier to reuse smaller pieces of HTML. The BindingContext (ViewModel) of the View will be set to th...

Using compose with a View, ViewModel and Model is an easy way to reuse and combine different Views and ViewModels. Given the following View and ViewModel (applies to each alternative below): src/greeter.html <template> <h1>Hello, ${name}!</h1> </template> src/gree...

Consider the following Java classes: class Foo { private Bar bar; public void foo() { bar.baz(); } } As can be seen, the class Foo needs to call the method baz on an instance of another class Bar for its method foo to work successfully. Bar is said to be a dependency for Foo sin...

The same examples as shown above with XML configuration can be re-written with Java configuration as follows. Constructor injection @Configuration class AppConfig { @Bean public Bar bar() { return new Bar(); } @Bean public Foo foo() { return new Foo(bar()); } } Property in...