Let me clarify right off the bat that I am not inquiring about how closures function, as I already have a grasp on that concept. What I am curious about is what data type should be assigned to closures.
Essentially, a closure can be thought of as a record that holds a function along with the environment in which it was created. To illustrate this in JavaScript, consider the following code snippet:
"use strict";
function printString(x){
var string = "hello " + x;
return function(){
console.log(string + ' how are you');
};
}
var myClosure = printString("Myname");
document.getElementById("testElement").textContent = typeof myClosure;
Given that myClosure is labeled as type function, how is it able to retain and store the local variables from its initial execution? Traditionally, this behavior is associated with objects rather than functions. Does this mean that closures should actually be treated as objects?