Protractor: Verify results are sorted - sorting

Question

Using Protractor I'm trying to verify if the sort works after I click on the sort by button. I've seen similar solutions here, but none of them works for my case.
On the page I have different values listed (15, 13, 67, ...) and for this I have home.myValues (using element.all). The flow would be:
store all numbers in an array and sort them with .slice().sort()
click on Sort by values button
store sorted numbers in an array
verify if sorted values match
Currently I have written the following, which doesn't work:
home.myValues.map(function(eachName) {
return eachName.getText().then(function(unSortedValues) {
initialSortedValues = unSortedValues.slice().sort();
return initialSortedValues;
});
});
// click on sort by values
home.sortByValues.click();
home.myValues.map(function(eachName) {
return eachName.getText().then(function(checkSortedValues) {
return checkSortedValues;
});
expect(initialSortedValues).toEqual(checkSortedValues);
});
Any suggestion is appreciated.

Answer 1

After some additional research I found this to work:
// verify my values are sorted
home.myValues.map(function(eachName) {
return eachName.getText().then(function(unSortedValues) {
return unSortedValues;
});
}).then(function(unSortedValues) {
// click on sort by value
home.sortByValue.click();
sortedValues = unSortedValues.slice();
sortedValues = sortedValues.sort(function(a, b){return a-b});
home.myValues.map(function(eachName) {
return eachName.getText().then(function(sortedValuesCheck) {
return sortedValuesCheck;
});
}).then(function(sortedValuesCheck) {
// verify sorted values equal expected
expect(sortedValues).toEqual(sortedValuesCheck);
});
});