Javascript onclick只能运行一次

Question

So I made this,

var Coin = document.getElementById("coin");

Coin.onclick = function() {
    Coin.style.webkitTransform = "rotateY(1800deg)";
    Coin.style.MozTransform = "rotateY(1800deg)";
    Coin.style.msTransform = "rotateY(1800deg)";
    Coin.style.OTransform = "rotateY(1800deg)";
    Coin.style.transform = "rotateY(1800deg)";
}

Found at: https://jsfiddle.net/dkjufqn0/

And in it, a coin spins. However, it only fires once. The first time I click it. It doesn't fire again after. Help!

Answer 1

Every time you click the coin it remains at the 1800 degrees, to rotate it on each click you need to increment its degrees as in below example:

https://jsfiddle.net/dkjufqn0/1/

 var Coin = document.getElementById("coin"); var degrees = 0; Coin.onclick = function() { degrees += 1800; console.log(degrees) Coin.style.webkitTransform = "rotateY(" + degrees + "deg)"; Coin.style.MozTransform = "rotateY(" + degrees + "deg)"; Coin.style.msTransform = "rotateY(" + degrees + "deg)"; Coin.style.OTransform = "rotateY(" + degrees + "deg)"; Coin.style.transform = "rotateY(" + degrees + "deg)"; } 

 body { -webkit-transform: perspective(500px); -webkit-transform-style: preserve-3d; } .coin { background-image: url("http://coins.thefuntimesguide.com/images/blogs/presidential-dollar-coin-reverse-statue-of-liberty-public-domain.png"); background-size: 100% 100%; border-radius: 100%; height: 100px; margin: 50px auto; position: relative; width: 100px; -webkit-transition: 2s linear; -webkit-transform-style: preserve-3d; } 

 <div class="coin" id="coin"></div> 

Answer 2

Are you sure about that? place a console.log(in that handler to check it)

I think your code is fine, except the rotateY calls seem to do nothing after the first click because you always set it to the same value.