JavaScript Functions

“Oh, boy, so you actually learned something today?” – Rick Sanchez.

Functions are part of what makes JavaScript great, and are also one of the most challenging aspects to understand.

Functions can be used to prevent repetition, separate concerns, or make applications that would just be too complicated without them.

As a professional web developer, you can expect to encounter many different kinds of functions every single day, like the ones covered by this course.

“Sometimes science is more art than science.” – Rick Sanchez

In this course, you’ll learn the following:

How to use functions and what they are

How to define functions and several different ways

How to call functions as many times as you need

You’ll also learn about

Function scope and how it effects variables and the functions’ children

Composing functions with currying and factories

Using the this keyword

Using callback functions

And much more!

“Nobody exists on purpose.” – Rick Sanchez

Don’t hesitate – learning about functions is one of the best tools in the repertoire of anyone who wants to increase their relevance as a JavaScript developer!

“Tomorrow, and tomorrow, and tomorrow,
Creeps in this petty pace from day to day,
To the last syllable of recorded time;
And all our yesterdays have lighted fools
The way to dusty death. Out, out, brief candle!
Life’s but a walking shadow, a poor player,
That struts and frets his hour upon the stage,
And then is heard no more.”  – Shakespeare