Javascript recursion within a class

Question

I am trying to get a recursion method to work in a class context. Within my class I have the following method:

    countChildren(n, levelWidth, level) {
            


        

Answer 1

The this inside the foreach than the this in the class. In your case, this refers to the current element being iterated.

you need to bind the scope.

n.children.forEach(function (n) {
   this.countChildren(n, levelWidth, level+1);
}.bind(this));