Best Practices – Javascript

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• 1.use === instead of ==
• 2. Avoid to use short-hand if(condition) variable = true Consider this : if(condition) { variable = true; }
• 3. Place scripts at the bottom of your page
• 4. Declare variables outside of the for statement
• 5. reduce globals
• 6. Comment your code.
• 7. Dont pass a String  to “Setinterval” or “SetTimeOut”
• 8.Dont use the “with” statement
• 9.use {} instead of new object()
• 10. use [] instead of new Array() var a = new Array(); a[0] = “prabu”; a[1  ="Siva"; instead of that , var a= ["prabu","siva"];
• 11. Always use semi colons
• 12. Self-executing Functions. ( function do() { return { name : “prabu”, lastname : “kalaiselvam” }; })();