Tutorial by Examples: ar

Here is the JSON File we will be using called animals.json { "Sea Animals": [ { "name": "Fish", "question": "How many species of fish are there?" }, { "name": "Sharks", ...

The iv is prefixed to the encrypted data aesCBC128Encrypt will create a random IV and prefixed to the encrypted code. aesCBC128Decrypt will use the prefixed IV during decryption. Inputs are the data and key are Data objects. If an encoded form such as Base64 if required convert to and/or from in ...

Sharding Group Members : For sharding there are three players. Config Server Replica Sets Mongos For a mongo shard we need to setup the above three servers. Config Server Setup : add the following to mongod conf file sharding: clusterRole: configsvr replication: replSe...

Create a new SSDT project Import 3rd party DB Build project to create a dacpac Reference dacpac in other projects

Go to the repository you want to clone (something like: https://github.com/username/repo) On the right, click on the green button named clone or download A small window will appear, copy the url (something like: https://github.com/username/repo.git) Open a terminal window on...

You can add partial mask on the column that will show few characters from te beginning and the end of the string and show mask instead of the characters in the middle: ALTER TABLE Company ALTER COLUMN Phone ADD MASKED WITH (FUNCTION = 'partial(5,"XXXXXXX",2)') In the parameters of th...

identification division. program-id. deleting. environment division. configuration section. input-output section. file-control. select optional indexed-file assign to "indexed-file.dat" status is indexing-status organization is ind...

// Default UINavigationBar appearance throughout the app [[UINavigationBar appearance] setTitleTextAttributes:@{NSForegroundColorAttributeName: [UIColor whiteColor], NSFontAttributeName : [UIFont fontWithName:@"HelveticaNeue-CondensedBold...

keyword search cd /usr/ports make search key=apache name search cd /usr/ports make search name=apache24 Using fresports Official FreeBSD ports website (http://freshports.org/) give you a nice way to find ports and all information concerning it.

If you have found your software in the ports tree, now its the time to build it. Simple build and install with manual configuration cd /usr/ports/www/apache24 make make install Simple build and install with automatic configuration cd /usr/ports/www/apache24 make BATCH=yes make install ...

If you want custom configuration from ports, you can configure it before building it make config. All ports configuration are stored in /var/db/ports/${CATEGORY_NAME}/options as makefile. Configuring www/apache24 cd /usr/ports/www/apache24 make config make make install This configuration wil...

Regular expression matching is a powerful tool (in Java, and in other contexts) but it does have some drawbacks. One of these that regular expressions tends to be rather expensive. Pattern and Matcher instances should be reused Consider the following example: /** * Test if all strings in a lis...

When invoking a def, parameters may be assigned explicitly by name. Doing so means they needn't be correctly ordered. For example, define printUs() as: // print out the three arguments in order. def printUs(one: String, two: String, three: String) = println(s"$one, $two, $three") ...

When nothing matches a wildcard such as * in bash, it gets passed on as a literal * to the command, as if you had typed \*. However, zsh throws an error. Bash: duncan@K7DXS-Laptop-Arch:~/test$ echo *.txt *.txt duncan@K7DXS-Laptop-Arch:~/test$ touch abc.txt duncan@K7DXS-Laptop-Arch:~/test$ echo...

Cordova plugins are in simple words a layer on top of the respective native platform. Plugins provide an interface between to access the native platform.

cordova-plugin-battery-status - used for monitoring device's battery status. cordova-plugin-camera - provides an API for taking pictures and for choosing images from the system's image library. cordova-plugin-contacts - provides access to the device contacts database. cordova-plug...

There are kinds 3 of transparency supported in pygame: colorkeys, Surface alphas, and per-pixel alphas. Colorkeys Makes a color fully transparent, or more accurately, making a color simply not be blit. If you have an image with a black rect inside you could set a colorkey to prevent the black colo...

index.html <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <meta http-equiv="Content-Security-Policy" content="default-src *; script-src 'self' 'unsafe-inline' 'unsafe-eval' *; style-src 'self' 'unsafe-inline' *"/> ...

SASS's optional arguments let you use a parameter only if you specify its value; otherwise, it will be ignored. Let's take an example of the following mixin: @mixin galerie-thumbnail ($img-height:14em, $img-width: null) { width: $img-width; height: $img-height; outline: 1px solid li...

A particular instance of an entity class can be loaded as follows: Foo foo = fooRepository.findOne(id); The findOne method is provided by the CrudRepository interface. It expects an identifier that uniquely identifies an entity instance (for instance, a primary key in a database table). The Java...