Im using the Google maps API to let a user search for a city and then I query my Firebase database based on the addressType. The google response returns different addressTypes (locality, add_level_1, add_level_2, ...), and I want to be able to execute different queries if I don't get a result.Im using the Google maps API to let a user sear
阅读背景：
如果Observable没有返回正确的响应，我该如何继续运行for循环。
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