JSFiddle - React, Tailwind, and code Playground
JavaScript
var sortAscending = function(a, b){
return a - b;
}
var removeDupes = function(elem, index, self){
return index == self.indexOf(elem);
}
var merge = function (arrayA, arrayB){
return arrayA.concat(arrayB).sort(sortAscending).filter(removeDupes);
}
console.log(merge([2, 3, 5, 7, 11], [2, 4, 6, 8, 10, 12, 14]))