Tutorial by Examples: d

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...

If you have a multidimensional array like this: [ ['foo', 'bar'], ['fizz', 'buzz'], ] And you want to change it to an associative array like this: [ 'foo' => 'bar', 'fizz' => 'buzz', ] You can use this code: $multidimensionalArray = [ ['foo', 'bar'], ...

Elasticsearch provides data manipulation & data searching capabilities in almost real time. under this example, we have update, delete & batch processing operations. Updating the same document. Suppose we have already indexed a document on /car/external/1 . Then running the command for i...

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...

Processing provides method triangle() to draw a triangle. This code draws a white triangle on black background. void setup() { size(500, 500); background(0); fill(255); noStroke(); } void draw() { triangle(250, 225, 225, 275, 275, 275); }

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: .DriveExists(strDrive) returns (True/False) .FileExists(strFile) returns (True/False) .FolderExists(strFolder) returns (True/False) The following code checks for the existence of a file using the "FileExists" method of a file system object. For checking the existence of...

Methods used: .DeleteFolder(FileSpec, Force (True/False)) .CreateFolder(Path) .DeleteFile(FileSpec, Force (True/False)) The following example illustrates the Deletion and creation of a folder using the methods "DeleteFolder" and "CreateFolder". Code: Dim strFolderPath, ob...

Methods Used: .CopyFile(Source, Dest [,Overwrite (True/False)] .CopyFolder(Source, Dest [,Overwrite (True/False)] The following code illustrates the use of CopyFile method to copy a file to a new location. The same thing can be achieved for the folders by using the CopyFolder method. Code: Di...

Methods Used: .MoveFile(Source, Dest) .MoveFolder(Source, Dest) The following code illustrates the use of MoveFile method to Move a file to a new location. The same thing can be achieved for the folders by using the MoveFolder method. Code: Dim objFso, strSourcePath, strDestPath strSourcePat...

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...

As java provide two different commands to compile and run Java code. Same as Kotlin also provide you different commands. javac to compile java files. java to run java files. Same as kotlinc to compile kotlin files kotlin to run kotlin files.

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...

Redis-py provides the execute_command method to directly invoke Redis operations. This functionality can be used to access any modules that may not have a supported interface in the redis-py client. For example, you can use the execute_command to list all of the modules loaded into a Redis server:...

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 ...

Common Lisp has 12 type specific operators to compare two characters, 6 of them case sensitives and the others case insensitives. Their names have a simple pattern to make easy to remember their meaning: Case SensitiveCase InsensitiveCHAR=CHAR-EQUALCHAR/=CHAR-NOT-EQUALCHAR<CHAR-LESSPCHAR<=CHA...