little async example

little async example

function asyncFn (param1, param2, callback) {
    console.log(param1); // "apple"
    console.log(param1); // "orange"
    
    var a = 1;
    var b = 2;
    // do some async magic here
    callback(a,b);
}

asyncFn("apple", "orange", function (a,b) { // a and b can renamed to whatever you'd like
    console.log(a); // 1
    console.log(b); // 2
})