概念

範例

button#wiggle Shake it

#wiggle
 position: relative

//讓他一開始不要搖
var wiggleTime = 31;
var wiggle=document.querySelector("#wiggle");

window.setInterval(
 function(){
 if(wiggleTime<=31){
 wiggleTime+=1;
 //console.log(wiggleTime);
 
 if(wiggleTime%2==0){
 wiggle.style.left="-5px";
 }else{
 wiggle.style.left="5px";
 } 
 } 
 }
 ,60);

wiggle.addEventListener("click",
 function(){
 wiggleTime=0;
}
);

Shake it