Tutorial by Examples: in

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...
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...
Creating variables in VBScript can be done by using the Dim, Public, or Private statement. It is best practice to put at the top of the script "Option Explicit" which forces you to explicitly define a variable. You can declare one variable like this: Option Explicit Dim firstName O...
Here are some ways to set variables: You can set a variable to a specific, string, number, date using SET EX: SET @var_string = 'my_var'; SET @var_num = '2' SET @var_date = '2015-07-20'; you can set a variable to be the result of a select statement using := EX: Select @var := '123'; (...
It's a better experience to open split below and on right set it using set splitbelow set splitright
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!"
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 ...
List comprehensions can introduce local bindings for variables to hold some interim values: [(x,y) | x <- [1..4], let y=x*x+1, even y] -- [(1,2),(3,10)] Same effect can be achieved with a trick, [(x,y) | x <- [1..4], y <- [x*x+1], even y] -- [(1,2),(3,10)] The let in list compr...
// circle objects: { x:, y:, radius: } // return true if the 2 circles are colliding // c1 and c2 are circles as defined above function CirclesColliding(c1,c2){ var dx=c2.x-c1.x; var dy=c2.y-c1.y; var rSum=c1.radius+c2.radius; return(dx*dx+dy*dy<=rSum*rSum); }
// rectangle objects { x:, y:, width:, height: } // return true if the 2 rectangles are colliding // r1 and r2 are rectangles as defined above function RectsColliding(r1,r2){ return !( r1.x>r2.x+r2.width || r1.x+r1.width<r2.x || r1.y>r2.y+r2.height || ...
// rectangle object: { x:, y:, width:, height: } // circle object: { x:, y:, radius: } // return true if the rectangle and circle are colliding function RectCircleColliding(rect,circle){ var dx=Math.abs(circle.x-(rect.x+rect.width/2)); var dy=Math.abs(circle.y-(rect.y+rect.height/2));...
The function in this example returns true if two line segments are intersecting and false if not. The example is designed for performance and uses closure to hold working variables // point object: {x:, y:} // p0 & p1 form one segment, p2 & p3 form the second segment // Retur...
// [x0,y0] to [x1,y1] define a line segment // [cx,cy] is circle centerpoint, cr is circle radius function isCircleSegmentColliding(x0,y0,x1,y1,cx,cy,cr){ // calc delta distance: source point to line start var dx=cx-x0; var dy=cy-y0; // calc delta distance: line start to e...
// var rect={x:,y:,width:,height:}; // var line={x1:,y1:,x2:,y2:}; // Get interseting point of line segment & rectangle (if any) function lineRectCollide(line,rect){ // p=line startpoint, p2=line endpoint var p={x:line.x1,y:line.y1}; var p2={x:line.x2,y:line.y2}; // to...

Page 388 of 742