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robwormald/usages.js

Created December 27, 2016 17:06
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usages.js
import {Observable} from 'rxjs' //the entire package, 300+KB
import {Observable} from 'rxjs/Observable' //just Observable, no operators, ~8KB
import {Subject} from 'rxjs/Subject' //just Subject, no operators
import 'rxjs/add/operator/map' //patch Observable proto with map operator
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