JavaScript Good Practices.

Variable and Function Style

• variables and functions : use camelCase
• var score;
• var myDate;
• function loanCalculator() { ... }
• Yahoo, Google, Java, DOM, JQuery
• Always use block - even if one line
• Define functions before calling them to make them readable (though you don't have to)
• Open curly braces on the same line
• Always use semicolons to end a statement
• Always use var when declaring a variable 
• JavaScript Minifier
• JavaScript Checker/Linter
• JQuery

Brace Style

// 
// JavaScript's own ability to insert what it thinks are missing 
// semicolons on lines that don't have them

// Place the opening curly brace at the same line of keyword, if, while
// and always use block as possible
if (x) {
} else {
}

// compare to Pascal or Allman style, Avoid.
if (x)
{
}
else
{
}

Note: Check Yahoo, Google, Mozilla for "javascript style guidelines"

Useful Links

• FireBug
• Venkman