18 docs tagged with "functions"

Attributes / Properties are properties of an HTML tag. They are used to add information to the tag and to control the behavior of the tag. Interview Questions

Bubbling and Capturing Events in JavaScript - The bubbling-up principle is self-explanatory based on its name. - JavaScript Interview Questions & Answers

Class Inheritance in JavaScript is a syntax for creating a class in JavaScript. What is the extends keyword used in JavaScript classes? Interview Questions

What is the developer console used for in JavaScript development? A developer console is a tool that allows you to interact with the JavaScript engine.

Learn how to use External Scripts in JavaScript. How do you access external script files in JavaScript development? | Frontend Developer Interview Questions

FormData Object is used to send data to a server. It is used to send the data in the form of key-value pairs. JavaScript Frontend Phone Interview Questions

All functions in JavaScript are objects. The concept of functions as callable "action objects" is an excellent approach to thinking about them.

The 7 types of functions include the function declaration, expressions, arrow function, shorthand methods, generators, constructors, and JS built-in methods.

Explain the function and syntax of the array splice() method? How do negative array indexes work? Why can’t you use a return statement in a forEach loop?

What is an array? Arrays are a collection of indexed values that can be accessed by a numerical index. We use arrays to store an collection of values. Frontend

Modern Markup in JavaScript - When working with modules, we use the script type attribute in Modern JavaScript. Frontend Developer Interview Questions n Answers

JavaScript Modules are a way to organize code into logical units. Modules are used to break down large projects into smaller pieces. Interview Questions

Objects the Basics

Prototype Methods in JavaScript are a property of the prototype object. It is used to store the function's properties and methods. Interview Questions

Recursion & Stack is a very common interview question.

The symbol type in JavaScript is a primitive type that is used to create unique identifiers for objects.

The Var Declaration is a very common interview question.

JavaScript variables are used to store data. A variable is named storage for data in JavaScript. They include let, const, and var variables. Interview Questions