How do I invoke a function within a for loop?

How can I call future.wait within a for loop function?

As of now, the returned 'singleObject' is coming out as undefined.

What I am trying to achieve is as follows.

1. create my object from each iteration

2.Pass this object into another function and process further. Do I 'return' the next function. I am confused as to how to invoke functions within a function in this for loop

    function createObjectFromArray(array) { //data is an array       with multiple object
     var len = array.length
     for (var i=0; i<len; i++) {
        var singleObject = {
           fieldOne: array[i].someField.valueOne,
           fieldTwo: array[i].someField.valueTwo
          }
        } //end of for loop
        myNextFUnction(singleObject)
    }