April 2018
Beginner to intermediate
426 pages
10h 19m
English
Functions are very important when working with JavaScript. We will also use functions in our examples.
The following code demonstrates the basic syntax of a function. It does not have arguments or the return statement:
function sayHello() {
console.log('Hello!');
}
To execute this code, we simply use the following statement:
sayHello();
We can also pass arguments to a function. Arguments are variables with which a function is supposed to do something. The following code demonstrates how to use arguments with functions:
function output(text) {
console.log(text);
}
To use this function, we can use the following code:
output('Hello!');
You can use as many arguments as you like, as follows:
output('Hello!', 'Other text');
In this ...