react-router-ga/example/node_modules/@babel/runtime/helpers/esm/set.js

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import superPropBase from "./superPropBase";
import defineProperty from "./defineProperty";

function set(target, property, value, receiver) {
  if (typeof Reflect !== "undefined" && Reflect.set) {
    set = Reflect.set;
  } else {
    set = function set(target, property, value, receiver) {
      var base = superPropBase(target, property);
      var desc;

      if (base) {
        desc = Object.getOwnPropertyDescriptor(base, property);

        if (desc.set) {
          desc.set.call(receiver, value);
          return true;
        } else if (!desc.writable) {
          return false;
        }
      }

      desc = Object.getOwnPropertyDescriptor(receiver, property);

      if (desc) {
        if (!desc.writable) {
          return false;
        }

        desc.value = value;
        Object.defineProperty(receiver, property, desc);
      } else {
        defineProperty(receiver, property, value);
      }

      return true;
    };
  }

  return set(target, property, value, receiver);
}

export default function _set(target, property, value, receiver, isStrict) {
  var s = set(target, property, value, receiver || target);

  if (!s && isStrict) {
    throw new Error('failed to set property');
  }

  return value;
}