js syntax keywords, statements, comments, identifiers

Tut#1 JavaScript Syntax: Identifiers, Comments, Statements and Keywords

How does case sensitivity affect your JavaScript code? Why True is not equal to true in JavaScript? How can you use single-line or multi-line comments in JavaScript to make notes of your code for your reference in the future? What are identifiers in JavaScript? What are the naming rules for identifiers in JS? What are statements in JS? What are keywords in JavaScript?