While you can pick up the very basics of JavaScript in a day, becoming truly good at it takes much longer. Think of it like ...

From syntax and features every JavaScript developer needs to higher-level concepts you shouldn't miss, here are eight ways to make the most of JavaScript.

Tips for naming JavaScript variables Dynamic typing and JavaScript variables How to work with string variables What you need to know about variable scope What is a user-defined variable in JavaScript?

Scoping controls how our programmes variables are organised and accessed by the javascript engine. So scoping asks the question – where can we access a certain variable and where can we not?

Scope in JavaScript refers to context (or portion) of the code which determines the accessibility (visibility) of variables. In JavaScript, we have two types of scope, local , and global.

The quote was a bit misleading, but the author was NOT talking about global variables in particular, but as general rules for minimizing scope. Obviously globals falls into this category by default.