Tutorial by Examples: d

root: build.gradle buildscript { repositories { jcenter() } dependencies { classpath 'com.android.tools.build:gradle-experimental:0.8.0-alpha4' } } allprojects { repositories { jcenter() } } app: build.gradle apply plugin: 'com.andro...

You can wrap values into actions and pipe the result of one computation into another: return :: Monad m => a -> m a (>>=) :: Monad m => m a -> (a -> m b) -> m b However, the definition of a Monad doesn’t guarantee the existence of a function of type Monad m => m a -&...

do-notation is syntactic sugar for monads. Here are the rules: do x <- mx do x <- mx y <- my is equivalent to do y <- my ... ... do let a = b let a = b in ...

CoffeeScript allows to deconstruct objects and arrays when they are fed to functions as arguments. A function that leverages deconstruction will specify in its signature all the fields that are expected within its body. When invoking such function, an object or array containing all the expected fie...

array = [1, 2, 3, 4] [first] = array # 1 [..., last] = array # 4 [first, middle..., last] = array # first is 1, middle is [2, 3], last is 4

The unset command is used to remove one or more variables. unset ?-nocomplain? ?--? ?name name name name? Each name is a variable name specified in any of the ways acceptable to the set command. If a name refers to an element of an array then that element is removed without affecting the rema...

XML <Goku> <child name="Gohan"/> <child name="Goten"/> </Goku> XPATH count(/Goku/child) OUTPUT 2.0

Enums are defined by the following the syntax above. typedef NS_ENUM(NSUInteger, MyEnum) { MyEnumValueA, MyEnumValueB, MyEnumValueC, }; You also can set your own raw-values to the enumeration types. typedef NS_ENUM(NSUInteger, MyEnum) { MyEnumValueA = 0, MyEnumValueB =...

The example below will collect the Device's OS version number and the the version of the application (which is defined in each projects' properties) that is entered into Version name on Android and Version on iOS. First make an interface in your PCL project: public interface INativeHelper { /...

When object's are linked by a lookup or master-detail relationship, the parent records field's can be referenced from the child record or 'base object' in a query. This is also known as upwards traversal. SELECT FirstName, Account.Name, Account.Category__c FROM Contact It's possible to traverse ...

A Property procedure is a series of statement that retrieves or modifies a custom property on a module. There are three types of property accessors: A Get procedure that returns the value of a property. A Let procedure that assigns a (non-Object) value to an object. A Set procedure that assign...

Any public Sub, Function, or Property inside a class module can be called by preceding the call with an object reference: Object.Procedure In a DateRange class, a Sub could be used to add a number of days to the end date: Public Sub AddDays(ByVal NoDays As Integer) mEndDate = mEndDate + No...

Another useful feature is accessing your custom object collections as arrays in PHP. There are two interfaces available in PHP (>=5.0.0) core to support this: ArrayAccess and Iterator. The former allows you to access your custom objects as array. ArrayAccess Assume we have a user class and a da...

<?php $ch = curl_init(); //curl handler init curl_setopt($ch,CURLOPT_URL,"http://www.google.com/search?q=curl"); curl_setopt($ch,CURLOPT_RETURNTRANSFER,true);// set optional params curl_setopt($ch,CURLOPT_HEADER, false); $result=curl_exec($ch); ...

To call a stored procedure on the server: $query = "{call [dbo].[myStoredProcedure](?,?,?)}"; //Parameters '?' includes OUT parameters $params = array( array($name, SQLSRV_PARAM_IN), array($age, SQLSRV_PARAM_IN), array($count, SQLSRV_PARAM_OUT, SQLSRV_PHPTYPE_INT) //$cou...

$conn = sqlsrv_connect($dbServer, $connectionInfo); $query = "SELECT * FROM [users] WHERE [name] = ? AND [password] = ?"; $params = array("joebloggs", "pa55w0rd"); $stmt = sqlsrv_query($conn, $query, $params); If you plan on using the same query statement more...

Create this class : public class InputFilterMinMax implements InputFilter { private int min, max; public InputFilterMinMax(int min, int max) { this.min = min; this.max = max; } public InputFilterMinMax(String min, String max) { this.min = Integer...

You have to create a different strings.xml file for every new language. Right-click on the res folder Choose New → Values resource file Select a locale from the available qualifiers Click on the Next button (>>) Select a language Name the file strings.xml strings.xml <resources&...

When first introduced, AsyncTasks were executed serially on a single background thread. Starting with DONUT, this was changed to a pool of threads allowing multiple tasks to operate in parallel. Starting with HONEYCOMB, tasks are executed on a single thread to avoid common application errors caused ...

Intro An array is a container object that holds a number of values. In the following image you can see an array with size 10, the first element indexed 1 and the last element 10. Autohotkey offers a few ways of defining and creating arrays. Array := [] Array := Array() Creating and initia...