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node_modules/rxjs/_esm2015/internal/observable/defer.js

@@ -0,0 +1,18 @@
+import { Observable } from '../Observable';
+import { from } from './from';
+import { empty } from './empty';
+export function defer(observableFactory) {
+    return new Observable(subscriber => {
+        let input;
+        try {
+            input = observableFactory();
+        }
+        catch (err) {
+            subscriber.error(err);
+            return undefined;
+        }
+        const source = input ? from(input) : empty();
+        return source.subscribe(subscriber);
+    });
+}
+//# sourceMappingURL=defer.js.map