What is the difference between parameters and arguments in a function?
In the realm of web development, specifically in JavaScript programming, understanding the distinction between parameters and arguments in a function is important. While these terms are often used interchangeably, they have distinct meanings and serve different purposes within the context of a function. To begin, let's define what a function is in JavaScript. In programming,
How do you call a function in JavaScript?
To call a function in JavaScript, you need to use the function's name followed by parentheses. This syntax allows you to execute the code inside the function and return any desired result. Calling a function is an essential concept in JavaScript, as it allows you to reuse code and perform specific tasks multiple times without
What is the purpose of the "return" keyword in a function?
The "return" keyword in a function serves a important purpose in the field of web development, specifically in JavaScript. It allows us to determine the output or result of a function and enables us to use that result in other parts of our code. When a function is called, it executes a series of statements
How do you define a custom function in JavaScript?
A custom function in JavaScript is a user-defined function that allows developers to create their own reusable blocks of code to perform specific tasks. Defining a custom function involves declaring the function name, specifying the parameters it accepts (if any), and writing the code block that defines the function's behavior. To define a custom function
- Published in Web Development, EITC/WD/JSF JavaScript Fundamentals, Functions in JavaScript, Adding a custom function, Examination review
What is a function in JavaScript and what is its purpose?
A function in JavaScript is a reusable block of code that performs a specific task. It is a fundamental concept in JavaScript and plays a important role in web development. Functions allow developers to organize their code, improve code reusability, and create modular and maintainable applications. The purpose of functions in JavaScript is to encapsulate