Remove duplicates values in array Google Apps Script

Question

I would like to know how to remove duplicates values from 2 arrays, combined into one main array.

This values must NOT be removed from the sheets or document, just i

Answer 1

In your code you are not doing anything to filter the duplicate values. This line will just sort the data and won't give you unique data.

var uniqueData = allData.sort(); 

You can do something like this on your merged array, after you 'installing' 2DArray lib: https://sites.google.com/site/scriptsexamples/custom-methods/2d-arrays-library

var uniqueData = unique(allData);

Another option is to create a loop and check for duplicate values, but you should remember to transform all the values of the string to lowercase before you do these matches.