Tutorial by Examples: l

Using Standard Controllers

If your page is for displaying or editing information about a particular type of record, it may be helpful to use a standard controller to reduce the amount of boilerplate code you need to write. By using a standard controller, your page will be displayed with an ?id=SALESFORCE_ID parameter, and yo...

Salesforce • Visualforce Page Development

How to protect your Web.config file

It is a good practice to encrypt your Web.config file if you have sensitive information there, for example a connection string with password. With the ASP.NET IIS Registration tool (Aspnet_regiis.exe) you can easily encrypt specific sections of Web.config file. A command with elevated privileges is...

asp.net-mvc • Web.config Encryption

Hello World in IOS

After you have set up Firebase to your IOS Project following the documentation for setting up firebase for IOS in other firebase related documentation you can get going with firebase. If you haven't already added the database pod to your Podfile do so now by adding pod Firebase/Database in ...

firebase-database • Hello World!

Allocating on the heap

A new memory block on the heap is allocated using the new expression, which returns a pointer to the managed memory: void main() { int* a = new int; *a = 42; // dereferencing import std.stdio : writeln; writeln("a: ", *a); }

D Language • Memory & Pointers

Hello World in Python

An example how to run stripe out of the box with wsgi from a single file. At first, please install the python stripe API, i.e. with pip: pip install --user stripe Create payment.py which creates a WSGI webserver at port 8000 out of the box html = """ <html> <body> ...

stripe-payments • Getting started with stripe-payments

Getting a static image, detecting items on it, and outputting the results.

Please note that this example uses OpenCV 3.1. import org.opencv.core.Mat; import org.opencv.core.MatOfRect; import org.opencv.core.Point; import org.opencv.core.Rect; import org.opencv.core.Scalar; import org.opencv.imgcodecs.Imgcodecs; import org.opencv.imgproc.Imgproc; import org.opencv.o...

opencv • Using Cascade Classifiers In Java

Sample table for sapui5 with control and processing examples

//Create a layout var tableLayout = new sap.ui.commons.layout.MatrixLayout({ layoutFixed : false, columns : 2, width : "100%", height : "100%", widths : [ "20%","80%"] }).addStyleClass('dsAvailLayout'); sap.ui.table.Table.extend(...

sapui5 • sapui5 Table

Raw String Interpolation

You can use the raw interpolator if you want a String to be printed as is and without any escaping of literals. println(raw"Hello World In English And French\nEnglish:\tHello World\nFrench:\t\tBonjour Le Monde") With the use of the raw interpolator, you should see the following printed in the ...

Scala Language • String Interpolation

Explanation

Zero values or zero initialization are simple to implement. Coming from languages like Java it may seem complicated that some values can be nil while others are not. In summary from Zero Value: The Go Programming Language Specification: Pointers, functions, interfaces, slices, channels, and maps ...

Go • Zero values

Create - Controller Part

To implement the create functionality we need two actions: GET and POST. The GET action used to return view which will show a form allowing user to input data using HTML elements. If there are some default values to be inserted before user adding any data, it should be assigned to the view mode...

asp.net-mvc • CRUD operation

Details - Controller part

By the url ~/Student/Details/5 being: (~: site root, Student: Controller, Details: Action, 5: student id), it is possible to retrieve the student by its id. // GET: Student/Details/5 public ActionResult Details(int? id) { // it good practice to consider that things could go wrong...

asp.net-mvc • CRUD operation

Details - View part

// Model is the class that contains the student data send by the controller and will be rendered in the view @model ContosoUniversity.Models.Student <h2>Details</h2> <div> <h4>Student</h4> <hr /> <dl class="dl-horizontal"> <...

asp.net-mvc • CRUD operation

Run TestNG suite with Gradle

Sample build.gradle file: plugin: 'java' repositories { mavenLocal() mavenCentral() jcenter() } dependencies { compile "org.testng:testng:6.9.12" } test { useTestNG() { suiteXmlBuilder().suite(name: 'Sample Suite') { test(name : 'Sample Te...

testng • Getting started with testng

The do loop

Most looping and conditional constructs in Common Lisp are actually macros that hide away more basic constructs. For example, dotimes and dolist are built upon the do macro. The form for do looks like this: (do (varlist) (endlist) &body) varlist is composed of the variables define...

common-lisp • Control Structures

Bootstrap themes versus rule overrides

What are themes? There are several visual appearance out there for Bootstrap, which can be found from sources, such as Bootswatch, which are modifying the bootstrap.min.css file. You can also create your own theme this way. When to modify themes and when to add new rules to a site.css file? When ...

twitter-bootstrap • Bootstrap Themes

Learning Vimscript the Hard Way

A book explaining how Vimscript works, full of examples. It can be found on http://learnvimscriptthehardway.stevelosh.com/

vim • Vim Resources

Simple movement between two locations

For this the best solution is using actions. To add a new action to an actors in Scene2D just call: Action action = Actions.moveTo(x,y,duration); actorObject.addAction(action); Where x and y is the target location and duration is the speed of this movement in seconds(float). If you want to sto...

libgdx • Moving actors on path with constant speed

Bundling a Cython program using pyinstaller

Start from a Cython program with a entrypoint: def do_stuff(): cdef int a,b,c a = 1 b = 2 c = 3 print("Hello World!") print([a,b,c]) input("Press Enter to continue.") Create a setup.py file in the same folder: from distutils.core import set...

cython • Cython bundling

Automating build (Windows)

For automation of the above procedure in Windows use a .bat of the similar contents: del "main.exe" python setup.py build_ext --inplace del "*.c" rmdir /s /q ".\build" pyinstaller --onefile "main.py" copy /y ".\dist\main.exe" ".\main.exe&q...

cython • Cython bundling

Adding Numpy to the bundle

To add Numpy to the bundle, modify the setup.py with include_dirs keyword and necessary import the numpy in the wrapper Python script to notify Pyinstaller. program.pyx: import numpy as np cimport numpy as np def do_stuff(): print("Hello World!") cdef int n n = 2 ...

cython • Cython bundling