Tutorial by Examples: b

First, determine the source file for this particular driver. Found it at drivers/usb/serial/ftdi_sio.c. ./scripts/get_maintainer.pl drivers/usb/serial/ftdi_sio.c And the results: Johan Hovold <[email protected]> (maintainer:USB SERIAL SUBSYSTEM) Greg Kroah-Hartman <gregkh@linuxfounda...

This example shows how to create a custom presentation transition that is driven by a composite UIDynamicBehavior. We can start by creating a presenting view controller that will present a modal. Swift class PresentingViewController: UIViewController { lazy var button: UIButton = { ...

Create a file (e.g. hello_world.py) in a text editor or a python editor if you have one installed (pick one if you don't - SublimeText, Eclipse, NetBeans, SciTe... there's many!) hwld = 'Hello world' print(hwld) Note that python variables do not need to be explicitly declared; the declaration h...

Jest is used by Facebook to test all JavaScript code including React applications. One of Jest's philosophies is to provide an integrated "zero-configuration" experience. We observed that when engineers are provided with ready-to-use tools, they end up writing more tests, which in turn res...

The command syntax will be of the following type: <REST Verb> /<Index>/<Type>/<ID> Execute the following command to explore elasticsearch cluster through Kibana Console. For checking the cluster health GET /_cat/health?v For listing all the indices GET /_cat...

Global Variable: This variable is available everywhere in the xsl stylesheet. This variable should only be the child of <xsl:stylesheet> element. Local variable: This variable is only available where it is declared. See Below Code: <?xml version="1.0" encoding="UTF-8"...

In the beginning there were callbacks, and callbacks were ok: const getTemperature = (callback) => { http.get('www.temperature.com/current', (res) => { callback(res.data.temperature) }) } const getAirPollution = (callback) => { http.get('www.pollution.com/current', (res) ...

As the header already says, the following list contains "interoperable signature types" which are more or less strictly defined. The PDF specification specifies a way to also include completely custom signing schemes. But let us assume we are in an interoperable situation. The the collecti...

In case of big data sets, the call of grepl("fox", test_sentences) does not perform well. Big data sets are e.g. crawled websites or million of Tweets, etc. The first acceleration is the usage of the perl = TRUE option. Even faster is the option fixed = TRUE. A complete example would be: ...

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...

The old-school method for running another script from batch is to echo the script into another location, and then run it. This method can be represented like this: @echo off rem VBS below echo your vbs > TempVBS.vbs echo other vbs>>TempVBS.vbs rem End of VBS cscript //nolog...

Another convenient solution for cross compilation is the usage of gox: https://github.com/mitchellh/gox Installation The installation is done very easily by executing go get github.com/mitchellh/gox. The resulting executable gets placed at Go's binary directory, e.g. /golang/bin or ~/golang/bin. E...

In order to load data from a MongoDB database into an R dataframe, use the library MongoLite: # Use MongoLite library: #install.packages("mongolite") library(jsonlite) library(mongolite) # Connect to the database and the desired collection as root: db <- mongo(collection = &quo...

Methods used: .GetFolder(strPath) - Returns an object referring to the path We can set an object reference to a folder using the getFolder method and perform different operations on them. Code: Dim strFolderPath, objFso, objFolder strFolderPath = "C:\Users\GS\Desktop\LogsFolder" Se...

Methods Used: .GetFile(strPath) - Returns an object referring to a file. We can set an object reference to a file using the getFile method and perform different operations on them. Code: Dim strFilePath, objFso, objFile strFilePath = "C:\Users\GS\Desktop\LogsFolder\file.txt" Set ob...

This example shows how to customize the UIDynamicItem protocol to map position changes of a view being dynamically animated to bounds changes to create a UIButton that expands and contracts in a elastic fashion. To start we need to create a new protocol that implements UIDynamicItem but that also...

EQ checks if two values have the same address of memory: in other words, it checks if the two values are are actually the same, identical object. So, it is can be considered the identity test, and should be applied only to structures: conses, arrays, structures, objects, typically to see if you ...

We can use the child-attached and child-detached events to listen for when the scene attaches or detaches an entity: entity.addEventListener('child-attached', function (evt) { if (evt.detail.el.tagName.toLowerCase() === 'a-box') { console.log('a box element has been attached'); }; }); ...

Updating Multi-Property Component Data To update component data for a multi-property component, we can pass the name of a registered component as the componentName, and pass an object of properties as the value. A string is also acceptable (e.g., type: spot; distance: 30), but objects will save A-F...

The schema is an object that defines and describes the property or properties of the component. The schema’s keys are the names of the property, and the schema’s values define the types and values of the property (in case of a multi-property component): Defining schema in your component AFRAME.reg...