Tutorial by Examples: u

The format statement applies the given format to the specified variable for display purposes only, i.e. the underlying value does not change. data example1 ; Date = '02AUG2016'd ; /* stored as a SAS date, i.e. a number */ Date2 = '31AUG2016'd ; format Date monyy7. Date2 yymmddn8. ; run...

In order to be able to work with C structs as Ruby objects, you need to wrap them with calls to Data_Wrap_Struct and Data_Get_Struct. Data_Wrap_Struct wraps a C data structure in a Ruby object. It takes a pointer to your data structure, along with a few pointers to callback functions, and returns a...

//Here self.webView is the view whose screenshot I need to take //The screenshot is saved in jpg format in the application directory to avoid any loss of quality in retina display devices i.e. all current devices running iOS 10 UIGraphicsBeginImageContextWithOptions(self.webView.bounds.size, N...

Idiom specific adjustments can be done from C# code, for example for changing the layout orientation whether the view is shown or a phone or a tablet. if (Device.Idiom == TargetIdiom.Phone) { this.panel.Orientation = StackOrientation.Vertical; } else { this.panel.Orientation = Stac...

Adjustments can be done for specific platforms from C# code, for example for changing padding for all the targeted platforms. if (Device.OS == TargetPlatform.iOS) { panel.Padding = new Thickness (10); } else { panel.Padding = new Thickness (20); } An helper method is also availab...

When working with XAML, using a centralized Style allows you to update a set of styled views from one place. All the idiom and platform adjustements can also be integrated to your styles. <Style TargetType="StackLayout"> <Setter Property="Padding"> <Setter...

You can create custom views that can be integrated to your page thanks to those adjustment tools. Select File > New > File... > Forms > Forms ContentView (Xaml) and create a view for each specific layout : TabletHome.xamland PhoneHome.xaml. Then select File > New > File... > F...

Source table RowABCD1CodeProductColourPrice21penred50032penblue-5043penred054pencilblue1765pencilgreen-1.5 to select all: = QUERY(A1:D5, "select *") or = QUERY(A1:D5, "select A, B, C, D") or convert data range into array and use this formula: = QUERY({A1:D5}, "sel...

Assume you want to delegate to a class but you do not want to provide the delegated-to class in the constructor parameter. Instead, you want to construct it privately, making the constructor caller unaware of it. At first this might seem impossible because class delegation allows to delegate only to...

Gson does not support inheritance out of the box. Let's say we have the following class hierarchy: public class BaseClass { int a; public int getInt() { return a; } } public class DerivedClass1 extends BaseClass { int b; @Override public int getI...

Struct defines new classes with the specified attributes and accessor methods. Person = Struct.new :first_name, :last_name You can then instantiate objects and use them: person = Person.new 'John', 'Doe' # => #<struct Person first_name="John", last_name="Doe"> p...

Person = Struct.new :name do def greet(someone) "Hello #{someone}! I am #{name}!" end end Person.new('Alice').greet 'Bob' # => "Hello Bob! I am Alice!"

Attributes can be accessed strings and symbols as keys. Numerical indexes also work. Person = Struct.new :name alice = Person.new 'Alice' alice['name'] # => "Alice" alice[:name] # => "Alice" alice[0] # => "Alice"

The first thing to do is to add the service to AndroidManifest.xml, inside the <application> tag: <application ...> ... <service android:name=".RecordingService" <!--"enabled" tag specifies Whether or not the service can ...

Let us first create a simple .proto file person.proto package Protocol; message Person { required string firstName = 1; required string lastName = 2; optional int32 age = 3; } After saving we can now create the Haskell files which we can use in our project by running ...

Here the steps required to create a Firebase project and to connect it with an Android app. Add Firebase to your app Create a Firebase project in the Firebase console and click Create New Project. Click Add Firebase to your Android app and follow the setup steps. When prompted, enter...

Task Rebuild -Depends Clean, Build { "Rebuild" } Task Build { "Build" } Task Clean { "Clean" } Task default -Depends Build

propreties { $isOk = $false } # By default the Build task won't run, unless there is a param $true Task Build -precondition { return $isOk } { "Build" } Task Clean { "Clean" } Task default -Depends Build

Task Build -depends Clean { "Build" } Task Clean -ContinueOnError { "Clean" throw "throw on purpose, but the task will continue to run" } Task default -Depends Build

1..100 | ForEach-Object { Write-Progress -Activity "Copying files" -Status "$_ %" -Id 1 -PercentComplete $_ -CurrentOperation "Copying file file_name_$_.txt" Start-Sleep -Milliseconds 500 # sleep simulates working code, replace this line with your e...