Aug 31, 2008 · I asked a question about Currying and closures were mentioned. What is a closure? How does it relate to currying?

And here comes the closure part: The closure of a lambda expression is this particular set of symbols defined in the outer context (environment) that give values to the free symbols in this expression, …

Mar 5, 2009 · I asked a question about callbacks and arrived at another question (see comment). How is a closure different from a callback?

Sep 27, 2010 · A closure is a first class function with bound variables. Roughly that means that: You can pass the closure as a parameter to other functions The closure stores the value of some variables …

The closure object here is the value of the envelope variable and it's use is that it's a param to the each method. Some details: Scope: The scope of a closure is the data and members that can be …

Sep 21, 2008 · A closure is a pairing of: A function and A reference to that function's outer scope (lexical environment) A lexical environment is part of every execution context (stack frame) and is a map …

Apr 15, 2009 · That's the magic, and frustration, of closure. "JavaScript Functions close over the scope they are declared in, and retain access to that scope even as variable values inside of that scope …

A closure is basically a representation of a function together with any non-local variables that the function consumes. In that sense, lambdas are not closures, but they do cause closures to be …

Apr 28, 2010 · A closure can actually be any function within another function, and its key characteristic is that it has access to the scope of the parent function including it's variables and methods.

The main difference is that a block simply groups instructions together (for example the body of a while statement), while a closure is a variable that contains some code that can be executed. If you have a …