<html>
<body>
<button id="loginBtn">登录</button>
<script type="text/javascript">
var createLoginLayer = function(){
var div = document.createElement("div");
div.innerHTML = '我是登录浮窗';
div.style.display = 'none';
document.body.appendChild(div);
return div;
};
var getSingle = function(fn){
console.log(this)
var result;
return function(){
return result || (result = fn.apply(this,arguments));
}
};
let a = {
getSingle: getSingle
}
var createSingleLoginLayer = getSingle(createLoginLayer);
var createSingleLoginLayer = a.getSingle(createLoginLayer);
document.getElementById('loginBtn').onclick = function(){
var loginLayer = createSingleLoginLayer();
loginLayer.style.display = 'block';
};
</script>
</body>
</html>相关文章：