JSFiddle - React, Tailwind, and code Playground

by ipeshev

JavaScript

function diffBetweenColumns(one, two) {
                return _.filter(one, function (obj) {
                    console.log(obj,!_.findWhere(two, obj));

                    return !_.findWhere(two, obj);
                });
            }
            var a = [{a:1},{a:2},{a:3},{a:4},{a:5}];
            var b = [{a:1},undefined,{a:3},{a:4},undefined];
            
            console.log(diffBetweenColumns(a,b));
            
            console.log(diffBetweenColumns(b,a));