@reactivex/ix-es5-esm/iterable/sum.js

The Interactive Extensions for JavaScript

import { __values } from "tslib";
import { identity } from '../util/identity.js';
/**
 * Computes the sum of a sequence of values.
 *
 * @param {Iterable<any>} source A sequence of values to calculate the sum.
 * @param {MathOptions<any>} [options] Optional options for providing a selector, thisArg and abort signal.
 * @returns {Promise<number>} A promise containing the sum of the sequence of values.
 */
export function sum(source, options) {
    var e_1, _a;
    var _b = options || {}, _c = _b["selector"], selector = _c === void 0 ? identity : _c, thisArg = _b["thisArg"];
    var value = 0;
    try {
        for (var source_1 = __values(source), source_1_1 = source_1.next(); !source_1_1.done; source_1_1 = source_1.next()) {
            var item = source_1_1.value;
            value += selector.call(thisArg, item);
        }
    }
    catch (e_1_1) { e_1 = { error: e_1_1 }; }
    finally {
        try {
            if (source_1_1 && !source_1_1.done && (_a = source_1.return)) _a.call(source_1);
        }
        finally { if (e_1) throw e_1.error; }
    }
    return value;
}

//# sourceMappingURL=sum.js.map