Tutorial by Examples: u

Don't rely on any user input. user input everything like <script> tag or any javascript alert(); so we have to prevent this all data will no run in our browser. so we have to use xss prevention method to restrict our secure data to kept in hacker hand and also it's developer's responsibility t...

<?php // Setting parameters $time = time(); $values = [7, $time, $time]; // Prints "At 3:50:31 PM on Apr 19, 2015, there was a disturbance on planet 7." $pattern = "At {1, time} on {1, date}, there was a disturbance on planet {0, number}."; $formatter = new Messa...

import com.ibm.icu.text.MessageFormat import java.util.Locale import scala.collection.JavaConverters._ // Outputs "A common message for all options. Selected: (other)" val formatted = new MessageFormat( "{messageCount, plural, one {{aMessage} (one)} other {{aMessage} (othe...

With OptionsParser, it's really easy to set up default values. Just pre-populate the hash you store the options in: options = { :directory => ENV['HOME'] } When you define the parser, it will overwrite the default if a user provide a value: OptionParser.new do |opts| opts.on("-d&...

Detailed instructions on getting identityserver4 set up or installed.

The splat operator removes individual elements of an array and makes them into a list. This is most commonly used to create a method that accepts a variable number of arguments: # First parameter is the subject and the following parameters are their spouses def print_spouses(person, *spouses) s...

Harp doesn’t require any configuration to get started. Install Harp in your terminal using the command: npm install -g harp. $ sudo npm install -g harp $ harp init myproject $ harp server myproject

The ValuesAttribute is used to specify a set of values for an individual parameter of a test method with parameters. [Test] public void Sum_Works_Correctly( [Values(1, 2, 3)] int x, [Values(4, 5)] int y) { // Arrange var calculator = new Calculator(...

By setting Multi-Release: true in the MANIFEST.MF file, the Jar file becomes a multi-release Jar and the Java runtime (as long as it supports the MRJAR format) will pick the appropriate versions of classes depending on the current major version. The structure of such a Jar is the following: jar ro...

The jar command can be used to create a multi-release Jar containing two versions of the same class compiled for both Java 8 and Java 9, albeit with a warning telling that the classes are identical: C:\Users\manouti>jar --create --file MR.jar -C sampleproject-base demo --release 9 -C sampleproje...

Given the following multi-release Jar: jar root - demo - SampleClass.class - META-INF - versions - 9 - demo - SampleClass.class The following class prints the URL of the SampleClass: package demo; import java.net.URL; public class Main...

First step : PCL part public class RoundedBoxView : BoxView { public static readonly BindableProperty CornerRadiusProperty = BindableProperty.Create("CornerRadius", typeof(double), typeof(RoundedEntry), default(double)); public double CornerRadius { get...

The following prints all stack frames of the current thread: 1 package test; 2 3 import java.lang.StackWalker.StackFrame; 4 import java.lang.reflect.InvocationTargetException; 5 import java.lang.reflect.Method; 6 import java.util.List; 7 import java.util.stream.Collectors; 8 9 pu...

The following prints the current caller class. Note that in this case, the StackWalker needs to be created with the option RETAIN_CLASS_REFERENCE, so that Class instances are retained in the StackFrame objects. Otherwise an exception would occur. public class StackWalkerExample { public stat...

Table ORDERS +---------+------------+----------+-------+--------+ | orderid | customerid | customer | total | items | +---------+------------+----------+-------+--------+ | 1 | 1 | Bob | 1300 | 10 | | 2 | 3 | Fred | 500 | 2 | | 3 | ...

Use Nginx map to parse fields and reject requests. # Allowed hosts map $http_host $name { hostnames; default no; example.com yes; *.example.com yes; example.org yes; *.example.org yes; .example.net yes; wap.* yes; } # Allowed count...

NOTE: we're only doing this for Chrome at the moment Windows For Windows we need to download version 2.29 http://chromedriver.storage.googleapis.com/index.html?path=2.29/ Once downloaded, extract the zip to a location of your choice Add the location of the driver to the PATH Make sure the lat...

The installation is very simple. If you are used to this kind of thing, just go to https://download.racket-lang.org. If you prefer, there are more detailed step-by-step installation instructions for the following systems: Installation steps (Windows) Installation steps (Linux) Installation step...

Visit https://download.racket-lang.org and choose between the two available distributions: Racket is the main distribution, it comes with several additional packages like math/number-theory as well as the DrRacket IDE. Minimal Racket is far smaller and comes only with the needed packages. ...

Visit https://download.racket-lang.org and choose between the two available distributions: Racket is the main distribution, it comes with several additional packages like math/number-theory as well as the DrRacket IDE. Minimal Racket is far smaller and comes only with the needed packages. Ins...