comment/assets/example.js

var RENDER_ELEMENT_WRAPPER = 'RENDER_ELEMENT_WRAPPER'; // 渲染评论的父标签
var RENDER_ELEMENT_COMMENT = 'comment'; // 渲染评论的标签的 id

/**
 * 根据 id 创建节点
 * @param {string} id id
 */
function createElement(id) {
  var node = document.createElement('div');
  node.setAttribute("id", id);
  document.getElementById(RENDER_ELEMENT_WRAPPER).appendChild(node);
}

/**
 * 根据 id 删除子节点
 * @param {string} id id
 */
function removeChild(id) {
  var myNode = document.getElementById(id);
  while (myNode.firstChild) {
    myNode.removeChild(myNode.firstChild);
  }
}



function main() {
  document.getElementById('render').addEventListener('click', function () {
    // 首先清空父标签的内容
    removeChild(RENDER_ELEMENT_WRAPPER);

    var id = RENDER_ELEMENT_COMMENT;
    // 动态创建渲染评论的标签
    createElement(id);
    // 渲染评论
    window.renderComment({
      id: id,
      type: 1,
      businessId: 'test',
      userId: 71299
    })
  })

  document.getElementById('re-render').addEventListener('click', function () {
    removeChild(RENDER_ELEMENT_WRAPPER)
    var id = RENDER_ELEMENT_COMMENT;
    createElement(id)
    window.renderComment({
      id: id,
      type: 1,
      businessId: 'test1',
      userId: 71299
    })
  })

}



main();