Would you like to clone this notebook?
When you clone a notebook you are able to make changes without affecting the original notebook.
//Simplest example of a custom iterator
function myIterator(){
let a = 0;
return {
next: function(){return a++}
}
}
let it = myIterator();
console.log(it.next());
console.log(it.next());
console.log(it.next());
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