JSFiddle - React, Tailwind, and code Playground

JavaScript

var oldWidth = window.innerWidth;


var onResize = function () {
var w = window.innerWidth;

	if ( Math.abs( w - oldWidth ) >= 100 ) {
	// then do some stuff
  	  console.log( 'diff >= 100px' );
  	  oldWidth = w;
	}
}

window.addEventListener('resize', onResize);