Tutorial by Examples: v

Use the value binding to obtain the value of an element. The value binding can be applied to any form control, however there are other bindings that may be better suited for checkboxes, radio buttons, and text inputs. The following example illustrates how to apply the binding element to several for...

All instances of an entity class with one of the class attributes matching a specified value can be retrieved as follows: public interface FooRepository extends CrudRepository<Foo, Long> { List<Foo> findAllByName(String name); } Invoking the findAllByName method results in the JP...

Now that you know how to connect with Redis from Node.js, let’s see how to store key-value pairs in Redis storage. Storing Strings All the Redis commands are exposed as different functions on the client object. To store a simple string use the following syntax: client.set('framework', 'Angula...

Azure SQL Database has different editions and performance tiers. You can find version, edition (basic, standard, or premium), and service objective (S0,S1,P4,P11, etc.) of SQL Database that is running as a service in Azure using the following statements: select @@version SELECT DATABASEPROPERTYEX...

You can scale-up or scale-down Azure SQL database using ALTER DATABASE statement: ALTER DATABASE WWI MODIFY (SERVICE_OBJECTIVE = 'P6') -- or ALTER DATABASE CURRENT MODIFY (SERVICE_OBJECTIVE = 'P2') If you try to change service level while changing service level of the current database is sti...

If you have created .Net function, compiled it into .dll, and imported it into SQL server as an assembly, you can create user-defined function that references function in that assembly: CREATE FUNCTION dbo.TextCompress(@input nvarchar(max)) RETURNS varbinary(max) AS EXTERNAL NAME MyLibrary.[Nam...

If you have create .Net class that represents some user-defined type, compiled it into .dll, and imported it into SQL server as an assembly, you can create user-defined function that references this class: CREATE TYPE dbo.Point EXTERNAL NAME MyLibrary.[Name.Space.Point] You need to specify name...

If you have created .Net method in some class, compiled it into .dll, and imported it into SQL server as an assembly, you can create user-defined stored procedure that references method in that assembly: CREATE PROCEDURE dbo.DoSomethng(@input nvarchar(max)) AS EXTERNAL NAME MyLibrary.[Name.Space....

Consider a base class Vehicle and its derived class Car as follows: #import <Foundation/Foundation.h> @interface Vehicle : NSObject { NSString *vehicleName; NSInteger vehicleModelNo; } - (id)initWithName:(NSString *)name andModel:(NSInteger)modelno; - (void)print; @end ...

Mixins can be passed a block of SASS compliant code, which then becomes available within the mixin as the @content directive. @mixin small-screen { @media screen and (min-width: 800px;) { @content; } } @include small-screen { .container { width: 600px; } } And this wou...

public void Screenshot() throws Throwable{ final byte[] screenshot = ((TakesScreenshot) driver).getScreenshotAs(OutputType.BYTES); scenario.embed(screenshot, "image/png"); // ... and embed it in the report. Thread.sleep(1000); } Alternately public static void captureSc...

It's not the best way of iterating through the pixels; however, it's better than cv::Mat::at<T>. Let's assume you have a color image in your folder and you want to iterate each pixels of this image and erase green and red channels(Note that this is an example, you can do this in more optimize...

Decision boundary when we classify using logistic regression- Decision boundary when we classify using SVM- As it can be observed, SVM tries to maintain a 'gap' on either side of the decision boundary. This proves helpful when we encounter new data. With new data- Logistic regression perform...

This example shows how to validate forms in Spring MVC using Bean Validation API using Java Annotations, without any xml. User will be proposed to input their registration data and validator will check it for validity. Add Dependencies First of all add the following dependencies in your project: ...

Observers are used for listening to livecycle callbacks of a certain model in Laravel. These listeners may listen to any of the following actions: creating created updating updated saving saved deleting deleted restoring restored Here is an example of an observer. UserObserver &l...

Format: cd "<path>" Example: cd "C:\Program Files (x86)\Microsoft Office" cd is an abbreviation for chdir and the two commands behave in the exact same way. For the sake of consistency, cd will be used throughout this topic. To navigate to the directory one leve...

cd by itself will not allow a user to move between drives. To move to a different drive, the /d option must be specified. e.g. Moving from C:\Users\jdoe\Desktop to D:\Office Work cd /d "D:\Office Work"

Options are used for adding capabilities such as "User-Agent". Example in C#: var options = new PhantomJSOptions(); options.AddAdditionalCapability("phantomjs.page.settings.userAgent", "Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:25.0) Gecko/20100101 Firefox/25.0&qu...

First, add the following permissions to the manifest of your project in order to enable device storage access: <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" /> ...

To Convert you date in dd/MM/yyyy format into milliseconds you call this function with data as String public long getMilliFromDate(String dateFormat) { Date date = new Date(); SimpleDateFormat formatter = new SimpleDateFormat("dd/MM/yyyy"); try { date = formatter.p...