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| /* | |
| DO NOT USE THIS POLYFILL | |
| because `instanceof` operator won't work | |
| copy from | |
| https://github.com/paulmillr/es6-shim | |
| https://github.com/wesleytodd/setprototypeof | |
| https://github.com/zloirock/core-js | |
| */ | |
| Object.setPrototypeOf = | |
| Object.setPrototypeOf || { __proto__: null } instanceof Object | |
| ? (function() { | |
| function has(obj, k) { | |
| return Object.prototype.hasOwnProperty.call(obj, k); | |
| } | |
| var getPrototypeOf = Object.getPrototypeOf; | |
| Object.getPrototypeOf = function gpo(O) { | |
| if (O == undefined) | |
| throw TypeError("Cannot convert undefined or null to object"); | |
| O = Object(O); | |
| if (has(O, "__proto__")) return O.__proto__; | |
| if (getPrototypeOf) return getPrototypeOf(O); | |
| if ( | |
| typeof O.constructor === "function" && | |
| O instanceof O.constructor | |
| ) { | |
| return O.constructor.prototype; | |
| } | |
| return O instanceof Object ? Object.prototype : null; | |
| }; | |
| return function mixinProperties(obj, proto) { | |
| Object.defineProperty(obj, "__proto__", { | |
| value: proto, | |
| enumerable: false, | |
| writable: true, | |
| configurable: true | |
| }); | |
| var keys = Object.getOwnPropertyNames(proto); | |
| for (var i = 0; i < keys.length; i++) { | |
| var key = keys[i]; | |
| if (!has(obj, key)) { | |
| var descriptor = Object.getOwnPropertyDescriptor(proto, key); | |
| descriptor.configurable = true; | |
| Object.defineProperty(obj, key, descriptor); | |
| } | |
| } | |
| return obj; | |
| }; | |
| })() | |
| : function setProtoOf(obj, proto) { | |
| obj.__proto__ = proto; | |
| return obj; | |
| }; |
Author
https://github.com/dgeibi/spo-gpo/blob/master/index.js
感谢，解决了ant-design-pro 在IE10 中提示如下错误：
function _classCallCheck(instance, Constructor) {
if (!(instance instanceof Constructor)) {
throw new TypeError("Cannot call a class as a function"); // 这里报错
}
}
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https://github.com/dgeibi/spo-gpo/blob/master/index.js