In nodeJs is there a way to loop through an array without using array size?

Question

Let\'s say I have

myArray = [\'item1\', \'item2\']

I tried

for (var item in myArray) {console.log(item)}

It

Answer 1

Use Iterators...

var myarray = ['hello', ' hello again'];
processArray(myarray[Symbol.iterator](), () => {
    console.log('all done')
})
function processArray(iter, cb) {
    var curr = iter.next()
    if(curr.done)
        return cb()
    console.log(curr.value)
    processArray(iter, cb)
}

More in depth overview: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols