Question

您好我正在尝试关闭，但无法弄清楚如何打印出来＆＃34; 10喜欢＆＃34;点击图片之前？是否有人可以帮我一些帮助我？

＆＃13;

var clickCount = (function() {
	var clickCounter = 10; //start from 10 likes
	return function() {
		var amountOfLikes = document.getElementById("counter");
		amountOfLikes.innerHTML =  clickCounter + " likes"; //increment the likes
		clickCounter++;
	}
})();

＆＃13;

  <img src="http://image.flaticon.com/icons/png/128/148/148836.png" id="like_button" alt="like-button" onclick="clickCount()"/><span id="counter"></span>

＆＃13;

Answer 1

一些建议：

永远不要将标记与javascript混合
尝试在javascript上处理事件
你不需要关闭它。你可以在标记上设置10个喜欢，然后只需点击继续增加值

window.onload = function() {
  document.getElementById("counter").addEventListener('click', clickCount);
}

function clickCount() {
  var amountOfLikes = document.getElementById("counter");
  var likes = parseInt(amountOfLikes.innerHTML, 0);
  amountOfLikes.innerHTML = likes + 1;
}

<img src="http://image.flaticon.com/icons/png/128/148/148836.png" id="like_button" alt="like-button" onclick="clickCount()"/><span id="counter">10 </span> likes

希望这有帮助

函数闭包显示外部函数的变量

1 个答案: