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- {"ast":null,"code":"import { Observable } from '../Observable';\nimport { async } from '../scheduler/async';\nimport { isNumeric } from '../util/isNumeric';\nimport { isScheduler } from '../util/isScheduler';\nexport function timer(dueTime = 0, periodOrScheduler, scheduler) {\n let period = -1;\n if (isNumeric(periodOrScheduler)) {\n period = Number(periodOrScheduler) < 1 && 1 || Number(periodOrScheduler);\n } else if (isScheduler(periodOrScheduler)) {\n scheduler = periodOrScheduler;\n }\n if (!isScheduler(scheduler)) {\n scheduler = async;\n }\n return new Observable(subscriber => {\n const due = isNumeric(dueTime) ? dueTime : +dueTime - scheduler.now();\n return scheduler.schedule(dispatch, due, {\n index: 0,\n period,\n subscriber\n });\n });\n}\nfunction dispatch(state) {\n const {\n index,\n period,\n subscriber\n } = state;\n subscriber.next(index);\n if (subscriber.closed) {\n return;\n } else if (period === -1) {\n return subscriber.complete();\n }\n state.index = index + 1;\n this.schedule(state, period);\n}\n//# sourceMappingURL=timer.js.map","map":null,"metadata":{},"sourceType":"module","externalDependencies":[]}
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