Tutorial by Examples: en

$ printf '%(%F)T\n' 2016-08-17

$ printf -v now '%(%T)T' $ echo "$now" 12:42:47

Lets create a simple transformation to convert a CSV into an XML file. Our Transformation has to do the following: Read the CSV file Build the greetings message Save the greetings in the XML file Create a Transformation: Here's how to start the Transformation: To the left of the works...

Pentaho Data Integration comes in two varieties: Community Edition (CE) - Free version for developers Enterprise Edition (EE) - Paid version for enterprise use Installation steps: You can download Pentaho Data Integration Community Edition from Sourceforge.net. For the Enterprise Editio...

The criteria that a type must satisfy in order to support pointers (see Remarks) cannot be expressed in terms of generic constraints. Therefore, any attempt to declare a pointer to a type provided through a generic type parameter will fail. void P<T>(T obj) where T : struct { T* p...

You want to combine arrays into one. For example, you have fruits = ['Broccoli', 'Carrots'] spices = ['Thyme', 'Cinnamon'] and you want to combine them into ingredients = ['Broccoli', 'Carrots', 'Thyme', 'Cinnamon'] Method 1 - using .concat ingredients = fruits.concat spices Method 2 -...

While the if ()... else statement allows to define only one (default) behaviour which occurs when the condition within the if () is not met, chaining two or more if () ... else statements allow to define a couple more behaviours before going to the last else branch acting as a "default", i...

In .NET, the GC allocates objects when there are no references left to them. Therefore, while an object can still be reached from code (there is a strong reference to it), the GC will not allocate this object. This can become a problem if there are a lot of large objects. A weak reference is a ref...

In most object oriented languages, allocating memory for an object and initializing it is an atomic operation: // Both allocates memory and calls the constructor MyClass object = new MyClass(); In Objective-C, these are separate operations. The class methods alloc (and its historic sibling allo...

Use the following piece of code to set the badge number from within your application (suppose someNumber has been declared before): Objective-C [UIApplication sharedApplication].applicationIconBadgeNumber = someNumber; Swift UIApplication.shared.applicationIconBadgeNumber = someNumber In order ...

import React, { Component } from 'react' import { View, Text, AppRegistry } from 'react-native' class Example extends Component { render () { return ( <View> <Text> I'm a basic Component </Text> </View> ) } } AppRegistry.registe...

These components will have changing States. import React, { Component } from 'react' import { View, Text, AppRegistry } from 'react-native' class Example extends Component { constructor (props) { super(props) this.state = { name: "Sriraman" } } render ...

As the name implies, Stateless Components do not have any local state. They are also known as Dumb Components. Without any local state, these components do not need lifecycle methods or much of the boilerplate that comes with a stateful component. Class syntax is not required, you can simply do con...

ADD 1 TO cobol This modifies the variable cobol. Overflow silently ignored. ADD 1 TO cobol GIVING GnuCOBOL This doesn't modify cobol, the result of the ADD being stored in GnuCOBOL. Again, overflow of the storage allocation silently ignored (the field will stay at its old value on size erro...

[DisallowMultipleComponent] [RequireComponent( typeof( Rigidbody ) )] public class AttributesExample : MonoBehaviour { [...] } [DisallowMultipleComponent] The DisallowMultipleComponent attribute prevents users adding multiple instances of this component to one GameObject. [Requi...

[AddComponentMenu( "Examples/Attribute Example" )] public class AttributesExample : MonoBehaviour { [ContextMenuItem( "My Field Action", "MyFieldContextAction" )] public string MyString; private void MyFieldContextAction() { [...] ...

We can change the tasks execution order with the dependsOn method. task A << { println 'Hello from A' } task B(dependsOn: A) << { println "Hello from B" } Adding `dependsOn: causes: task B depends on task A Gradle to execute A task everytime before the B ta...

project('projectA') { task A(dependsOn: ':projectB:B') << { println 'Hello from A' } } project('projectB') { task B << { println 'Hello from B' } } To refer to a task in another project, you prefix the name of the task with the path of the pr...

task A << { println 'Hello from A' } task B << { println 'Hello from B' } B.dependsOn A It is an alternative way to define the dependency instead of using the task name. And the output is the same: > gradle -q B Hello from A Hello from B

You can add multiple dependencies. task A << { println 'Hello from A' } task B << { println 'Hello from B' } task C << { println 'Hello from C' } task D << { println 'Hello from D' } Now you can define a set of dependencies: B.dependsOn A...