0025 Polyfill 合集

备忘一下, 采集详情页重构需要的内容如下：

closest

目录Index

• closest - element-closest-polyfill
• fetch

closest - element-closest-polyfill

参考 idmadj/element-closest-polyfill

if (!Element.prototype.matches) {
  Element.prototype.matches = Element.prototype.msMatchesSelector || Element.prototype.webkitMatchesSelector;
}
if (!Element.prototype.closest) {
  Element.prototype.closest = function (s) {
    var el = this;
    do {
      if (el.matches(s)) return el;
      el = el.parentElement || el.parentNode;
    } while (el !== null && el.nodeType === 1);
    return null;
  };
}