What does the keyword "new" do in JavaScript?
- Creates a class
- Declares a variable
- Instantiates an object
- Defines a function
The keyword "new" in JavaScript is used to instantiate an object from a class constructor. When you use "new" followed by a class constructor, it creates a new instance of that class, allowing you to work with objects that have the properties and methods defined in the class. It doesn't create a class, declare a variable, or define a function.
Loading...
Related Quiz
- To add elements to an array at a specific index, you might use _______.
- Why might for...of loops be preferred when working with asynchronous code?
- Question 3: Imagine that you're developing an application where elements are frequently added and removed. This operation causes the page to re-render often, leading to performance issues. What strategy could be used to minimize re-renders and optimize the application’s performance?
- You want to select an element with the ID 'special' using JavaScript. However, your code isn't working as expected. What could be the possible reason if the HTML structure is correct?
- What is the default binding of "this" in JavaScript?