JavaScript-type packaging object (Typed Wrappers)

For example:

New Boolean (false)

An object will be returned. This object has a valueOf method that will return the encapsulated value. This is completely unnecessary and sometimes confusing. Do not use new Boolean, new Number, or new String.

In addition, avoid using new Object and new Array. You can use {} and [] instead.

--------------------------------------------------------------------------------

JavaScript has a set of typed wrappers. For example:

New Boolean (false) produces an object that has a valueOf method that returns the wrapped value. this turns out to be completely unnecessary and occasionally confusing. don't use new Boolean or new Number or new String.

Also avoid new Object and new Array. Use {} and [] instead.

Original article: http://demon.tw/programming/javascript-typed-wrappers.html