find.js 1003 B

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  1. "use strict";
  2. Object.defineProperty(exports, "__esModule", { value: true });
  3. exports.createFind = exports.find = void 0;
  4. var lift_1 = require("../util/lift");
  5. var OperatorSubscriber_1 = require("./OperatorSubscriber");
  6. function find(predicate, thisArg) {
  7. return lift_1.operate(createFind(predicate, thisArg, 'value'));
  8. }
  9. exports.find = find;
  10. function createFind(predicate, thisArg, emit) {
  11. var findIndex = emit === 'index';
  12. return function (source, subscriber) {
  13. var index = 0;
  14. source.subscribe(OperatorSubscriber_1.createOperatorSubscriber(subscriber, function (value) {
  15. var i = index++;
  16. if (predicate.call(thisArg, value, i, source)) {
  17. subscriber.next(findIndex ? i : value);
  18. subscriber.complete();
  19. }
  20. }, function () {
  21. subscriber.next(findIndex ? -1 : undefined);
  22. subscriber.complete();
  23. }));
  24. };
  25. }
  26. exports.createFind = createFind;
  27. //# sourceMappingURL=find.js.map