wecui/packages/wecui-css/node_modules/core-js/library/modules/_defined.js

一款基于Vue2.x版本的移动端web组件

// 7.2.1 RequireObjectCoercible(argument)
module.exports = function (it) {
  if (it == undefined) throw TypeError("Can't call method on  " + it);
  return it;
};