Course Content
Introduction to JavaScript
You should use the function
keyword to create a new function. Also, you need to name this function and define arguments that the function should take:
The function definition structure:
- the
function
keyword; - function name (should be in camelCase like variables);
- arguments are in parentheses (
()
); - code block in curly brackets (
{}
).
Arguments
Functions have their own data usage space. Arguments are literals passed to a function. The function uses these arguments as variables. Arguments disappear when the function finishes executing. Functions have their own data usage space.
To define arguments, you need to give a name to each argument:
If a function accepts multiple arguments, they must be separated by commas (,
).
Note
Arguments are used like variables inside the function code block.
Function calling
To use a function, you should call it by parentheses (()
) and give the arguments if a function expects it:
Section 6.
Chapter 2