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node_modules/rxjs/_esm2015/internal/operators/find.js

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+import { Subscriber } from '../Subscriber';
+export function find(predicate, thisArg) {
+    if (typeof predicate !== 'function') {
+        throw new TypeError('predicate is not a function');
+    }
+    return (source) => source.lift(new FindValueOperator(predicate, source, false, thisArg));
+}
+export class FindValueOperator {
+    constructor(predicate, source, yieldIndex, thisArg) {
+        this.predicate = predicate;
+        this.source = source;
+        this.yieldIndex = yieldIndex;
+        this.thisArg = thisArg;
+    }
+    call(observer, source) {
+        return source.subscribe(new FindValueSubscriber(observer, this.predicate, this.source, this.yieldIndex, this.thisArg));
+    }
+}
+export class FindValueSubscriber extends Subscriber {
+    constructor(destination, predicate, source, yieldIndex, thisArg) {
+        super(destination);
+        this.predicate = predicate;
+        this.source = source;
+        this.yieldIndex = yieldIndex;
+        this.thisArg = thisArg;
+        this.index = 0;
+    }
+    notifyComplete(value) {
+        const destination = this.destination;
+        destination.next(value);
+        destination.complete();
+        this.unsubscribe();
+    }
+    _next(value) {
+        const { predicate, thisArg } = this;
+        const index = this.index++;
+        try {
+            const result = predicate.call(thisArg || this, value, index, this.source);
+            if (result) {
+                this.notifyComplete(this.yieldIndex ? index : value);
+            }
+        }
+        catch (err) {
+            this.destination.error(err);
+        }
+    }
+    _complete() {
+        this.notifyComplete(this.yieldIndex ? -1 : undefined);
+    }
+}
+//# sourceMappingURL=find.js.map