redux-observable-es6-compat/src/operators.js

This is build from redux-observable (https://github.com/redux-observable/redux-observable) but fix errors in es2015

import { filter } from 'rxjs/operators';

const keyHasType = (type, key) => {
  return type === key || typeof key === 'function' && type === key.toString();
};

export const ofType = (...keys) => (source) => source.pipe(
  filter(({ type }) => {
    const len = keys.length;
    if (len === 1) {
      return keyHasType(type, keys[0]);
    } else {
      for (let i = 0; i < len; i++) {
        if (keyHasType(type, keys[i])) {
          return true;
        }
      }
    }
    return false;
  })
);