A Valid Argument

Share This Post

In our continuing saga into functions, which is one of the foundational aspects of JavaScript, I want to address arguments. Note that this topic also applies to other languages, but other languages might use different terminology, such as methods and parameters. That is a somewhat semantic argument, but if you are coming from a classical OOP language, I want to be on the same page with you.

So…arguments…not the kind you have between a Mac and Windows guy…I am talking about the arguments of a function. Arguments are data (I know…bad grammar). That is what they are. Arguments are data that get passed to a function. Why would you want to do this? This allows functions to receive data from somewhere and then manipulate that data within the function. Let’s review function

[code lang=”js”]
// Declare function with function keyword
// Name your function
// Encase proper syntax of parentheses & curly braces
function foobar() {
// Write some code here

Now that we have reviewed function syntax, where do arguments come into the picture? You pass an argument to the function utilizing the parentheses. Here is the syntax…

[code lang=”js”]
// Pass an argument (myArg1) to the function
function foobar(myArg1) {
// Write some code here

The aforementioned syntax allows us to pass data to the function for the function to use. Let’s look at a simple example of how this works…

[code lang=”js”]
function funcAddFive(myNum1) {
// take argument and perform math problem
var sum = myNum1 + 5;
return sum;
// Call function and pass argument
// After this runs, myNum should equal 13
var myNum = funcAddFive(8);

As you can see we can pass the data to our function and the function can then work its magic, so to speak, and use the passed data argument to complete its assigned task. I know there is some other stuff going on there that I have not covered in a post yet (return keyword and assigning a function to a variable), but I plan on covering those in the future. The main point I want you to walk away with is that you can pass data, called arguments, to functions and work with that data.

Happy Coding!

Clay Hess

More To Explore


Demystifying Scrum User Stories Confirmation: Ensuring Quality and Collaboration

One of the key elements of Scrum is the use of user stories to define the requirements of a system or feature from the perspective of the end user. As teams work through the product backlog, it becomes crucial to confirm the user stories to ensure they meet the desired criteria and are ready for development. In this blog post, we’ll explore the concept of Scrum user stories confirmation and its significance in delivering high-quality products.


The Power of Conversations in Scrum User Stories

At the heart of Scrum lies the concept of user stories, which serve as a means of capturing requirements from the perspective of end-users. However, the true power of user stories lies not just in their written form but also in the conversations that take place around them. In this blog post, we will explore the significance of conversations in Scrum user stories and how they contribute to the success of Agile projects.

Do You Want To Boost Your Business?

drop us a line and keep in touch

Scroll to Top

Need help?

Let's have a chat...


Jump Back In!

Here at Webolution Designs, we love to learn. This includes sharing things we have learned with you. 


Begin Your Learning Journey Today!

Come back inside to continue your learning journey.