JSFiddle - React, Tailwind, and code Playground

HTML

<div id="box"><img src="https://lorempixel.com/100/100/cats" alt=""></div>

JavaScript

function enter(){
console.log('Навел');
}
var timeout = null;

$('#box').mouseenter(function(){
  clearTimeout(timeout);
  timeout = setTimeout(enter, 5000);
});

$('#box').mouseleave(function(){
  clearTimeout(timeout);
});