JavaScript Learning notes (preface)

Recently began to learn JavaScript, I will learn a language before the first to set up a few questions and objectives, to develop habits.

The problem with this study:

(1) What is JavaScript for?

(2) How does JavaScript work?

Here, the first question is quite large, in fact I want to ask is:

(1) The concept of JavaScript.

(2) The history of JavaScript.

(3) The scope of JavaScript usage.

The second problem is called grammar.

(1) The syntactic structure of JavaScript.

(2) Use of JavaScript.

JavaScript Learning notes (preface)