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To remove the next element in jQuery, use the remove().ExampleFollowing is the code − Live Demo Document cancel(X) Demo cancel(X) Demo cancel(X) Demo $(".demo1").click(function () { $(this).parent().next("hr").remove(); $(this).parent().remove(); return false; }); To run the above program, save the file name “anyName.html(index.html)”. Right click on the file and select the option “Open with Live Server” in VSCode editor −OutputThis will produce the following output −Whenever you click the cancel(X), the jQuery will remove the element. This will produce the following output −
Yes, the not not operator is the reverse process of not operator. If any value is true then single ! (not) will return false and !! will return opposite value (true).The not operator −var flag=true; console.log(!flag);The not not operator −var flag=true; console.log(!!flag);ExampleFollowing is the code −var flag=true; console.log("The result of single !=") console.log(!flag); console.log("The result of single !!=") console.log(!!flag)To run the above program, you need to use the following command −node fileName.js. Here, my file name is demo247.jsOutputThis will produce the following output on console −PS C:\Users\Amit\javascript-code> node demo247.js The result of single != false The result of single !!= ... Read More
The following options are for dotnet by itself. For example, dotnet −−info. They print out information about the environment if not installed it will throw error.−−infoPrints out detailed information about a .NET Core installation and the machine environment, such as the current operating system, and commit SHA of the .NET Core version.−−versionPrints out the version of the .NET Core SDK in use.−−list−runtimesPrints out a list of the installed .NET Core runtimes. An x86 version of the SDK lists only x86 runtimes, and an x64 version of the SDK lists only x64 runtimes.−−list−−sdksPrints out a list of the installed .NET Core ... Read More
A bitmap consists of the pixel data for a graphics image and its attributes. There are many standard formats for saving a bitmap to a file. GDI+ supports the following file formats: BMP, GIF, EXIF, JPG, PNG and TIFF. You can create images from files, streams, and other sources by using one of the Bitmap constructors and save them to a stream or to the file system with the Save method.In the below code CompressAndSaveImageAsync Method Compresses the images and saves in the path Mentioned.The new image name will be a combination of desktop userId and dateTimeExampleprivate async Task CompressAndSaveImageAsync(Bitmap ... Read More
Parallel ForeachParallel.ForEach loop in C# runs upon multiple threads and processing takes place in a parallel way. Parallel.ForEach loop is not a basic feature of C# and it is available from C# 4.0 and above To use Parallel.ForEach loop we need to import System.Threading.Tasks namespace in using directive.ForeachForeach loop in C# runs upon a single thread and processing takes place sequentially one by one. Foreach loop is a basic feature of C# and it is available from C# 1.0. Its execution is slower than the Parallel.Foreach in most of the cases.Example 1static void Main(string[] args){ List alphabets = new ... Read More
DateTimeDateTime is a structure of value Type like int, double etc. It is available in System namespace and present in mscorlib.dll assembly.It implements interfaces like IComparable, IFormattable, IConvertible, ISerializable, IComparable, IEquatable.DateTime contains properties like Day, Month, Year, Hour, Minute, Second, DayOfWeek and others in a DateTime object.TimeSpanTimeSpan struct represents a time interval that is difference between two times measured in number of days, hours, minutes, and seconds.TimeSpan is used to compare two DateTime objects to find the difference between two dates. TimeSpan class provides FromDays, FromHours, FromMinutes, FromSeconds, and FromMilliseconds methods to create TimeSpan objects from days, hours, minutes, seconds, ... Read More
Replace() method is a string method. This method is used to replace all the specified Unicode characters or specified string from the current string object and returns a new modified string. This method can be overloaded by passing arguments to it.Example 1To replace even the case sensitive charaters Regular expressions provide a powerful, flexible, and efficient method for processing text. The extensive pattern-matching notation of regular expressions enables you to quickly parse large amounts of text to:Find specific character patterns.Validate text to ensure that it matches a predefined pattern (such as an email address).Extract, edit, replace, or delete text substrings.Add ... Read More
C# provides a special data types, the nullable types, to which you can assign normal range of values as well as null values.C# 2.0 introduced nullable types that allow you to assign null to value type variables. You can declare nullable types using Nullable where T is a type.Nullable types can only be used with value types.The Value property will throw an InvalidOperationException if value is null; otherwise it will return the value.The HasValue property returns true if the variable contains a value, or false if it is null.You can only use == and != operators with a nullable type. ... Read More
The readonly keyword is used to declare a member variable a constant, but allows the value to be calculated at runtime. This differs from a constant declared with the const modifier, which must have its value set at compile time. Using readonly you can set the value of the field either in the declaration, or in the constructor of the object that the field is a member of.The 'readonly' modifier can be used in a total of four contexts:Field declarationReadonly struct declarationReadonly member definitionRef read only method returnWhen we use the field declaration context, we need to know that the ... Read More
In data analysis, we encounter many problems with a lot of variations among them. One such problem is we have some information in a place that needs to be checked through a different place and these places can be data frames. Therefore, we need to find the position of a data frame’s column value based on a column value of another data frame. In R, we can easily do it with the help of which function.Example Live DemoConsider the below data frame −set.seed(12121) x1