The mouseenter event will only be triggered once. The trigger object is a registered object or a child element of the registered object.
The mouseover event can be triggered multiple times. The trigger object is a registered object or a child element of the registered object.
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>Document</title></head><body> <p>The mouseover event will be triggered regardless of whether the mouse pointer passes through the selected element or its child element. </p> <p>The mouseenter event will only be triggered when the mouse pointer passes through the selected element. </p> <div style="background-color:lightgray;padding:20px;width:40%;float:left"> <h2 style="background-color:white;">Flashed Mouseover event: <span></span></h2> </div> <div style="background-color:lightgray;padding:20px;width:40%;float:right"> <h2 style="background-color:white;">Flashed Mouseenter event: <span></span></h2> </div> <script> var x = 0,y = 0; var div1 = document.getElementsByClassName("over")[0]; div1.addEventListener("mouseover",function(){ var span = this.getElementsByTagName("span")[0] span.innerText = (x +=1); span.style.cssText = "border:2px red solid;"; },false); var div2 = document.getElementsByClassName("enter")[0]; div2.addEventListener("mouseenter",function(){ var span = this.getElementsByTagName("span")[0] span.innerText = (y +=1); span.style.cssText = "border:2px red solid;"; },false); </script></body></html>The above article briefly talks about the difference between mouseover and mouseenter in JQ is all the content I share with you. I hope you can give you a reference and I hope you can support Wulin.com more.