{"action":"created","issue":{"url":"https://api.github.com/repos/ReactiveX/rxjs/issues/2887","repository_url":"https://api.github.com/repos/ReactiveX/rxjs","labels_url":"https://api.github.com/repos/ReactiveX/rxjs/issues/2887/labels{/name}","comments_url":"https://api.github.com/repos/ReactiveX/rxjs/issues/2887/comments","events_url":"https://api.github.com/repos/ReactiveX/rxjs/issues/2887/events","html_url":"https://github.com/ReactiveX/rxjs/issues/2887","id":262021924,"number":2887,"title":"Support for composability?","user":{"login":"wshager","id":660912,"avatar_url":"https://avatars0.githubusercontent.com/u/660912?v=4","gravatar_id":"","url":"https://api.github.com/users/wshager","html_url":"https://github.com/wshager","followers_url":"https://api.github.com/users/wshager/followers","following_url":"https://api.github.com/users/wshager/following{/other_user}","gists_url":"https://api.github.com/users/wshager/gists{/gist_id}","starred_url":"https://api.github.com/users/wshager/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/wshager/subscriptions","organizations_url":"https://api.github.com/users/wshager/orgs","repos_url":"https://api.github.com/users/wshager/repos","events_url":"https://api.github.com/users/wshager/events{/privacy}","received_events_url":"https://api.github.com/users/wshager/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":2,"created_at":"2017-10-02T09:05:15Z","updated_at":"2017-10-05T15:42:49Z","closed_at":null,"author_association":"NONE","body":"Currently I'm in the process of converting a project to Rx that uses transducers a lot. It appears that there's no easy way to use transducers with rxjs, as `lift` needs to be called. For instance, I can't seem to compose `concatMap` with other functions.\r\n\r\nPerhaps I'm missing something here? If not, are there any plans to support composable operators?"},"comment":{"url":"https://api.github.com/repos/ReactiveX/rxjs/issues/comments/334505966","html_url":"https://github.com/ReactiveX/rxjs/issues/2887#issuecomment-334505966","issue_url":"https://api.github.com/repos/ReactiveX/rxjs/issues/2887","id":334505966,"user":{"login":"benlesh","id":1540597,"avatar_url":"https://avatars0.githubusercontent.com/u/1540597?v=4","gravatar_id":"","url":"https://api.github.com/users/benlesh","html_url":"https://github.com/benlesh","followers_url":"https://api.github.com/users/benlesh/followers","following_url":"https://api.github.com/users/benlesh/following{/other_user}","gists_url":"https://api.github.com/users/benlesh/gists{/gist_id}","starred_url":"https://api.github.com/users/benlesh/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/benlesh/subscriptions","organizations_url":"https://api.github.com/users/benlesh/orgs","repos_url":"https://api.github.com/users/benlesh/repos","events_url":"https://api.github.com/users/benlesh/events{/privacy}","received_events_url":"https://api.github.com/users/benlesh/received_events","type":"User","site_admin":false},"created_at":"2017-10-05T15:42:49Z","updated_at":"2017-10-05T15:42:49Z","author_association":"OWNER","body":"It's hard to say without seeing precisely what you're trying to do... but it sounds like the pipeable/lettable operators are probably what you're looking for. They're just higher-order functions that return `<T, R>(source: Observable<T>) => Observable<R>`"}}
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