Tutorial by Examples: id

Shade Transition with Real-World Physics Using UIDynamicBehaviors

This example shows how to make an interactive presentation transition with "real-world" physics similar to iOS's notifications screen. To start with, we need a presenting view controller that the shade will appear over. This view controller will also act as our UIViewControllerTransitio...

iOS • UIKit Dynamics

Preloading Audio and Video

Audio and video assets will only block the scene if we set autoplay or if we set preload="auto": <a-scene> <a-assets>  <audio src="blockus.mp3"></audio> <video src="loadofblocks.mp4">&...

aframe • Asset Management System

Creating a Custom Dragging Behavior with UIDynamicAnimator

This example shows how to create a custom dragging behavior by Subclassing UIDynamicBehavior and subclassing UICollectionViewFlowLayout. In the example, we have UICollectionView that allows for the selection of multiple items. Then with a long press gesture those items can be dragged in an elastic, ...

iOS • UIKit Dynamics with UICollectionView

Scrolling a group of widgets

When a window contains many widgets, they might not all be visible. However, neither a window (Tk or Toplevel instance) nor a Frame are scrollable. One solution to make the window content scrollable is to put all the widgets in a Frame, and then, embed this Frame in a Canvas using the create_window ...

tkinter • Scrolling widgets

Equality & Identity

Kotlin uses == for equality (that is, calls equals internally) and === for referential identity. JavaKotlina.equals(b);a == ba == b;a === ba != b;a !== b See: https://kotlinlang.org/docs/reference/equality.html

Kotlin • Kotlin for Java Developers

Example Fluid Template File

Templates/Text.html <html xmlns:f="http://typo3.org/ns/TYPO3/CMS/Fluid/ViewHelpers" data-namespace-typo3-fluid="true"> <f:layout name="Default" /> <f:section name="Main"> <f:format.html>{data.bodytext}</f:format.html&gt...

typo3 • Fluid templating in TYPO3

Declaring a nullable GUID

Like other value types, GUID also has a nullable type which can take null value. Declaration : Guid? myGuidVar = null; This is particularly useful when retrieving data from the data base when there is a possibility that value from a table is NULL.

C# Language • Guid

Overriding invoke method to build DSL

If you have: class MyExample(val i: Int) { operator fun <R> invoke(block: MyExample.() -> R) = block() fun Int.bigger() = this > i } you can write the following DSL-like code in your production code: fun main2(args: Array<String>) { val ex = MyExample(233) ex ...

Kotlin • DSL Building

Publish with clean up from inside a customization project

Open the customization project that you want to publish with this method. Open the publish menu at the top and select the "Publish with Cleanup" option. *Please take note that all customization project that are selected on the customization screen will be republish even if you are ...

acumatica • Publishing skipped already applied customization content

Keyword Guide

Read Keywords KeyWordFunctionExampleMATCHFind following expression in graphMATCH (n) Write Keywords KeyWordFunctionExampleCREATECreate the following patternCREATE (n:Person{name:"Bob"})DELETEDelete the following nodes/relationshipsDELETE nDETACH DELETEDelete the following nodes, and any...

cypher • Getting started with cypher

Valid/Invalids

Naming When naming CSS variables, it contains only letters and dashes just like other CSS properties (eg: line-height, -moz-box-sizing) but it should start with double dashes (--) //These are Invalids variable names --123color: blue; --#color: red; --bg_color: yellow --$width: 100px; //Vali...

CSS • Custom Properties (Variables)

Parsing and validating a token using the HMAC signing method

// sample token string taken from the New example tokenString := "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJmb28iOiJiYXIiLCJuYmYiOjE0NDQ0Nzg0MDB9.u1riaD1rW97opCoAuRCTy4w58Br-Zk-bh7vLiRIsrpU" // Parse takes the token string and a function for looking up the key. The latter is especially ...

Go • JWT Authorization in Go

MYSQLi data into a column name array

$data = $result->mysqli_fetch_array(MYSQLI_BOTH);

mysqli • Reading data

Kernel ID

To properly work with the data each thread needs to know its position in the threadblock/global thread pool. This can be archieved with get_local_id($dim); get_global_id($dim); Those two functions return the position of the thread relative to the threadblock or all threads. get_working_dim(); ...

opencl • Kernel Basics

Create instance of non-static inner class from outside

An inner class which is visible to any outside class can be created from this class as well. The inner class depends on the outside class and requires a reference to an instance of it. To create an instance of the inner class, the new operator only needs to be called on an instance of the outer cla...

Java Language • Nested and Inner Classes

Adding more features to a simple plot : axis labels, title, axis ticks, grid, and legend

In this example, we take a sine curve plot and add more features to it; namely the title, axis labels, title, axis ticks, grid and legend. # Plotting tutorials in Python # Enhancing a plot import numpy as np import matplotlib.pyplot as plt x = np.linspace(0, 2.0*np.pi, 101) y = np.sin(x) ...

Python Language • Plotting with Matplotlib

Importing fixed-width files

Fixed-width files are text files in which columns are not separated by any character delimiter, like , or ;, but rather have a fixed character length (width). Data is usually padded with white spaces. An example: Column1 Column2 Column3 Column4Column5 1647 pi 'important' ...

R Language • Reading and writing tabular data in plain-text files (CSV, TSV, etc.)

Variable Value Truthiness and Identical Operator

In PHP, variable values have an associated "truthiness" so even non-boolean values will equate to true or false. This allows any variable to be used in a conditional block, e.g. if ($var == true) { /* explicit version */ } if ($var) { /* $var == true is implicit */ } Here are some fun...

PHP • Variables

Do not leave the parameter list of a function blank — use void

Suppose you are creating a function that requires no arguments when it is called and you are faced with the dilemma of how you should define the parameter list in the function prototype and the function definition. You have the choice of keeping the parameter list empty for both prototype and d...

C Language • Common C programming idioms and developer practices

Output a Multidimensional Array with index and value and print into the table

Array ( [0] => Array ( [id] => 13 [category_id] => 7 [name] => Leaving Of Liverpool [description] => Leaving Of Liverpool [price] => 1.00 [virtual] => 1 [active] =...

PHP • Outputting the Value of a Variable