Javascript weird things (1)comment , data type for a number

1. When you have to write a comment in your javascript code, it's safer to write a comment with a single line comment than with a multi line comment(comment block).

// Single line comment

/* Multi line
    comment
*/

The reason former is safer is that  */ <- It appers in regular expressions too.
So sometimes it might throw an syntax error.(when mixed regular expressions & multi line comment).

2. Javascript has a only one data type for a number. (It is same as 'double' in Java).
So there is no difference between 1 and 1.0

1 == 1.0

-> true!

You can check it on the browser console.



Reference Book : Javascript the good parts(Douglas crockford)