Use variable from one forEach Method in another

Question

I am trying to use a value from inside one getJSON, forEach method in another. Is there any way for me to do that?

JavaScript

Answer 1

By the comment you wrote, I'd prefer do it like this (think that both will have same length):

var first, second;
$.when(
    $.getJSON(json1, result => first = result),
    $.getJSON(json2, result => second = result)
).then(function() {
    if (first && second) {
        let results = first.map((item, index) => item.x / second[index].v);
        // do whatever you want
    }
});