Best Practices:

• Choose short but readable variable names.
• Avoid global variables.
• Use only one global object to encapsulate any global variables you really need.
• Always use var to declare your variables.
• Indent your code so it’s readable.
• Use curly braces to define blocks of code.
• Comment your code.
• Always use semi-colons.
• Be aware of where automatic semi-colon insertion happens.
• Declare variables outside loops.
• Reduce DOM operations.