Question

Example :

var myFunctArray=new Array();

for(var i=0; i<10; i++) {
    addValues(i);
}

function addValues(myPoint)
{
    myFunct=function () {
        var myVar="Line " + myPoint;
        console.log(myVar);
    }    

    myFunctArray.push(myFunct);        
}

myFunctArray[3]();

when I call the 4° function, how can it remembers the value of myPoint? In fact it is Line 3 the output, so myPoint value must be “stored” somewhere, for each function.

So, it stores 10 “definitions” of myFunct in the stack memory?

Hope it is clear what I mean.

Answer 1

It’s called a closure. Any variables that are currently in scope when you create a new function are associated with that closure.