Loop through multiple arrays, combining to single array,maintaining indexes within the subarray with split string

Like on question about loop on multiple arrays, if the array two contains a split string like this:

var one = [1, 2, 3, 4];
var two = ['a', 'b', 'c,d,e,f,g', 'h'];
var three = ['U', 'V', 'W', 'X', 'Y', 'Z'];
var all = [one, two, three];
var mix = [];

how can we itenerate like answered @Andrew Clark on the code:

for (var i = 0; all.length !== 0; i++) {
    var j = 0;
    while (j < all.length) {
        if (i >= all[j].length) {
            all.splice(j, 1);
        } else {
            mix.push(all[j][i]);
            j += 1;
        }
    }
}

what i would like to do is to return the split string through the arrays like:

[1, 'a', 'U', 2, 'b', 'V', 3, 'c', 'W', 4, 'h', 'X', 'Y', 'Z',1, 'a', 'U', 2, 'b', 'V', 3, 'd', 'W', 4, 'h', 'X', 'Y', 'Z',1, 'a', 'U', 2, 'b', 'V', 3, 'e', 'W', 4, 'h', 'X', 'Y', 'Z', 1, 'a', 'U', 2, 'b', 'V', 3, 'f', 'W', 4, 'h', 'X', 'Y', 'Z',1, 'a', 'U', 2, 'b', 'V', 3, 'g', 'W', 4, 'h', 'X', 'Y', 'Z']