html调用带参数的自执行js的方法

JS部分

// 初始化一个弹出框
// 生成dom元素
// 插到页面中
// 显示

(function(window, document) {
  let Msg = function(options) {
    this._init(options);
  }

  Msg.prototype._init = function({ content = '' }) {
    this.content = content;
    this._createElement();
    this._show(this._el);
  }

  Msg.prototype._createElement = function() {
    let wrap = document.createElement('div');
    wrap.className = 'msg__wrap';
   
    wrap.innerHTML = '\
    <div class="msg-header">\
      <span>确认删除</span>\
      <span class="msg-header-close-button">×</span>\
    </div>\
    <div class="msg-body">\
      <div class="msg-body-icon">\
        <div class="msg-body-icon-info"></div>\
      </div>\
      <div class="msg-body-content"></div>\
    </div>\
    <div class="msg-footer">\
      <button class="msg-footer-btn msg-footer-cancel-button">算了吧</button>\
      <button class="msg-footer-btn msg-footer-confirm-button">好的</button>\
    </div>';
    this._el = wrap;
    console.log("TCL: Msg.prototype._createElement -> this._el", this._el)
  
  }

  Msg.prototype._show = function(el) {
    document.body.append(el);

    setTimeout(function() {
      el.style.transform = 'translate(-50%, -50%) scale(1, 1)';
    });
  }

  window.$Msg = Msg;

})(window, document);

不断通过原型往上添加函数，注意_init（）的参数是html里穿的
HTML部分

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
  <link rel="stylesheet" href="./msg.css">
  <style>
    #pop {
      border: 0 none;
      color: #fff;
      outline: none;
      padding: 10px 20px;
      font-size: 18px;
      background: #2594f0;
      cursor: pointer;
    }

    #pop:active {
      background: blue;
    }
  </style>
</head>

<body>
  <button id="pop">弹个框</button>
<!--
  <div class="msg__wrap">
    <div class="msg-header">
      <span>确认删除</span>
      <span class="msg-header-close-button">×</span>
    </div>
    <div class="msg-body">
      <div class="msg-body-icon">
        <div class="msg-body-icon-wrong"></div>
      </div>
      <div class="msg-body-content">是否删除</div>
    </div>
    <div class="msg-footer">
      <button class="msg-footer-btn msg-footer-cancel-button">算了吧</button>
      <button class="msg-footer-btn msg-footer-confirm-button">好的</button>
    </div>
  </div>
 -->
  <script src="./msg.js"></script>
  <script type="text/javascript">

      new $Msg({
        content: '贤者模式马上就过去了。。真的要清空吗？<span style="color: red;">~</span>',
      });
  </script>
</body>

只看最后就行，通过new方法找到暴露出的$msg，不用参数也行，因为前面的解构赋值代表着如果时underfine就是空

来源：CSDN

作者：锋芒神话霜

链接：https://blog.csdn.net/qq_34471916/article/details/104156976

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