JezK
Edit File: first.js
"use strict"; Object.defineProperty(exports, "__esModule", { value: true }); exports.first = void 0; var EmptyError_1 = require("../util/EmptyError"); var filter_1 = require("./filter"); var take_1 = require("./take"); var defaultIfEmpty_1 = require("./defaultIfEmpty"); var throwIfEmpty_1 = require("./throwIfEmpty"); var identity_1 = require("../util/identity"); function first(predicate, defaultValue) { var hasDefaultValue = arguments.length >= 2; return function (source) { return source.pipe(predicate ? (0, filter_1.filter)(function (v, i) { return predicate(v, i, source); }) : identity_1.identity, (0, take_1.take)(1), hasDefaultValue ? (0, defaultIfEmpty_1.defaultIfEmpty)(defaultValue) : (0, throwIfEmpty_1.throwIfEmpty)(function () { return new EmptyError_1.EmptyError(); })); }; } exports.first = first; //# sourceMappingURL=first.js.map