What are Argument and Parameter in Javascript with examples

Learn how to think and you are halfway there.

Most of the people use these terms, parameters, and arguments interchangeably. No one will laugh at you because you said parameter instead of argument or vice-versa. But it doesn't mean you should do it. It might be wise to use the correct term correctly.

Coding is a craftmanship, know your tools better. It will make you better developer.

Let's look at them with examples.

Simple example

An argument is the value of a parameter.

Here a and b are parameters and values passed (2, 2) is the argument.

Extras

Parameter without a default value

Parameter is variable msg whereas empty, undefined, and Hey yo are arguments passed into greeting() function.