JSFiddle - React, Tailwind, and code Playground

JavaScript

var prevW = -1, prevH = -1;

$(document).ready(function() {

    // ... other stuff you might have inside .ready()

    prevW = $(window).width();
    prevH = $(window).height();
});

$(window).resize(function() {
    var widthChanged = false, heightChanged = false;
    if($(window).width() != prevW) {
        widthChanged  = true;
    }
    if($(window).height() != prevH) {
        heightChanged = true;
    }

    // your stuff
    alert('Width changed: ' + widthChanged + "\n" + 'Height changed: ' + heightChanged);

    prevW = $(window).width();
    prevH = $(window).height();

});