inherits.js 564 B

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  1. import setPrototypeOf from "./setPrototypeOf.js";
  2. export default function _inherits(subClass, superClass) {
  3. if (typeof superClass !== "function" && superClass !== null) {
  4. throw new TypeError("Super expression must either be null or a function");
  5. }
  6. subClass.prototype = Object.create(superClass && superClass.prototype, {
  7. constructor: {
  8. value: subClass,
  9. writable: true,
  10. configurable: true
  11. }
  12. });
  13. Object.defineProperty(subClass, "prototype", {
  14. writable: false
  15. });
  16. if (superClass) setPrototypeOf(subClass, superClass);
  17. }