Standards

• Code Conventions for the JavaScript Programming Language

• Principals of Writing Consistent, Idiomatic JavaScript

• Dojo Style Guide

Class

Use a capital letter for constructors e.g:

function Animal() {
    this.breed = "test";
}

Note: Make sure you construct class objects with the new keyword e.g:

var f = new Animal();

Semicolons

From JavaScript, The Definitive Guide, section 2.4, Optional Semicolons:

“Omitting semicolons is not good programming practice; you should get in the habit of using them”…

Unicode

From JavaScript, The Definitive Guide, section 2.1, Character Set:

JavaScript programs are written using the Unicode character set.