January 2008
![](http://blogmarks.net/screenshots/2008/01/29/8836548c4f4729d183c8a10c53465839.png)
Javascript Closures
by 1 otherA "closure" is an expression (typically a function) that can have free variables together with an environment that binds those variables (that "closes" the expression).
historical document apparently.
May 2007
![](http://blogmarks.net/screenshots/2007/05/07/093208805816b9bc82aa1c706c71ff7d.png)