This plugin is a utility method for jQuery to convert a string value passed to it to one of the following JavaScript scalar primitives:
"false"
->false
(Bool)"true"
->true
(Bool)"null"
->null
""
->undefined
"<number>"
-><number>
(Number)
It will not cast Array or Object literals. This would mainly be used for properly casting values you would pull from form fields or other HTML attributes like data-* attributes.
jQuery.cast(string) -> Returns properly casted scalar value.