When a user copies the element’s content, then the oncopy event triggers.ExampleYou can try to run the following code to learn how to implement oncopy event in JavaScript.                          function copyFunction() {             document.write("Text copied!");          }          

The onpageshow event triggers in JavaScript when a user reaches the new web page.ExampleYou can try to run the following code to learn how to implement onpageshow event in JavaScript.           On first visit, a welcome message is visible.                function newFunc() {             alert("Welcome!");          }          

The pattern attribute in HTML is used to set a regular expression in the following input types: text, url, tel, search, date, email, and password. For passwords, with the pattern attribute, you can set the minimum required values. For example, password should have at least 8 characters.ExampleYou can try to ... Read More

Use the accept attribute to set the types of files that the server accepts in HTML. Use the attribute only with .ExampleYou can try to run the following code to work with accept attribute −           File Upload Box                                  

You should really be using a library to parsing CSV files in C++ as there are many cases that you can miss if you read files on your own. The boost library for C++ provides a really nice set of tools for reading CSV files. For example, example#include vector parseCSVLine(string ... Read More

The return value for main is used to indicate how the program exited. If the program execution was normal, a 0 return value is used. Abnormal termination(errors, invalid inputs, segmentation faults, etc.) is usually terminated by a non-zero return. There is no standard for how non-zero codes are interpreted.You can ... Read More

The bitwise shift operators are the right-shift operator (>>), which moves the bits of shift_expression to the right, and the left-shift operator (

The :: (scope resolution) operator is used to get hidden names due to variable scopes so that you can still use them. The scope resolution operator can be used as both unary and binary.You can use the unary scope operator if a namespace scope or global scope name is hidden ... Read More

There is no such operator in C++. Sometimes, we need to create wrapper types. For example, types like unique_ptr, shared_ptr, optional and similar. Usually, these types have an accessor member function called .get but they also provide the operator→ to support direct access to the contained value similarly to what ... Read More

We use the const qualifier to declare a variable as constant. That means that we cannot change the value once the variable has been initialized. Using const has a very big benefit. For example, if you have a constant value like the value of PI, you wouldn't like any part ... Read More