Tutorial by Examples: ti

In T4 code-generation strategy used by Entity Framework 5 and higher, data annotation attributes are not included by default. To include data annotations on top of certain property every model regeneration, open template file included with EDMX (with .tt extension) then add a using statement under U...

This method is to check data connection by ping certain IP or Domain name. public Boolean isDataConnected() { try { Process p1 = java.lang.Runtime.getRuntime().exec("ping -c 1 8.8.8.8"); int returnVal = p1.waitFor(); boolean reachable = (returnVal==0); ...

public static boolean isConnectedNetwork (Context context) { ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); return cm.getActiveNetworkInfo () != null && cm.getActiveNetworkInfo ().isConnectedOrConnecting (); ...

Using Error Handling to make Struct(or class) initializer as throwable initializer: Example Error Handling enum: enum ValidationError: Error { case invalid } You can use Error Handling enum to check the parameter for the Struct(or class) meet expected requirement struct User { let ...

From Apple documentation for IV, This parameter is ignored if ECB mode is used or if a stream cipher algorithm is selected. func AESEncryption(key: String) -> String? { let keyData: NSData! = (key as NSString).data(using: String.Encoding.utf8.rawValue) as NSData! ...

Without splatting it is very cumbersome to try and pass values down through the call stack. But if you combine splatting with the power of the @PSBoundParameters then you can pass the top level parameter collection down through the layers. Function Outer-Method { Param ( [string...

ArcPy is composed of a number of modules: arcpy — the basic functions and geoprocessing tools arcpy.mapping — access to mapping and map document tools arcpy.da — a data access module for working with feature classes and tables arcpy.sa — the Spatial Analyst extension module arcpy.na — the Net...

The Java Native Interface (JNI) allows you to call Java functions from native code. Here is a simple example of how to do it: Java code: package com.example.jniexample; public class JNITest { public static int getAnswer(bool) { return 42; } } Native code: int getTheAnswer(...

Technically, Ruby doesn't have functions, but methods. However, a Ruby method behaves almost identically to functions in other language: def double(n) n * 2 end This normal method/function takes a parameter n, doubles it and returns the value. Now let's define a higher order function (or met...

This example shows multiple producers and consumers sharing the same buffer. Protected entries in Ada implement a queue to handle waiting tasks. The default queuing policy is First In First Out. ------------------------------------------------------------------ -- Multiple producers and consumers ...

Detailed instructions on getting activemq set up or installed.

The :{ instruction begins multi-line mode and :} ends it. In multi-line mode GHCi will interpret newlines as semicolons, not as the end of an instruction. ghci> :{ ghci| myFoldr f z [] = z ghci| myFoldr f z (y:ys) = f y (myFoldr f z ys) ghci| :} ghci> :t myFoldr myFoldr :: (a -> b -&g...

Understanding the concept To understand content negotiation in Web API, it is important to understand the term Resource. On the web, any information that we can access can be referred as HTTP resource. There is a tremendous amount of material to view on the web which has different content type suc...

With Flask, URL routing is traditionally done using decorators. These decorators can be used for static routing, as well as routing URLs with parameters. For the following example, imagine this Flask script is running the website www.example.com. @app.route("/") def index(): return ...

Similar to Meteor.js, Flask integrates well with front end templating services. Flask uses by default Jinja Templating. Templates allow small snippets of code to be used in the HTML file such as conditionals or loops. When we render a template, any parameters beyond the template file name are pass...

Atom is a hackable text editor created by GitHub and developed on top of the Electron desktop application platform. This means it can be used as a text editor for basic programming up to a full-sized IDE. It is also extremely customisable, it provides thousands of community-made packages (syntax hi...

The traditional GLSL compilation model involves compiling code for a shader stage into a shader object, then linking multiple shader objects (covering all of the stages you want to use) into a single program object. Since 4.2, program objects can be created that have only one shader stage. This met...

File myFile = new File(getFilesDir(), "myData.bin"); FileOutputStream out = new FileOutputStream(myFile); // Write four bytes one two three four: out.write(new byte [] { 1, 2, 3, 4} out.close() There is nothing Android specific with this code. If you write lots of small ...

You can also read and write from/to memory card (SD card) that is present in many Android devices. Files in this location can be accessed by other programs, also directly by the user after connecting device to PC via USB cable and enabling MTP protocol. Finding the SD card location is somewhat more...

This example will be using the class md-icon-button, which must be applied to <md-button> in order to get an icon button. It is also recommended to add an aria-label attribute to <md-button> for accessibility purpose or the ARIA provider will throw a warning that there is no aria-labe...