sequency/lib/average.js

Functional sequences for processing iterable data in JavaScript

Object.defineProperty(exports, "__esModule", { value: true });
exports.Average = void 0;
var Average = /** @class */ (function () {
    function Average() {
    }
    /**
     * Returns the average of all numbers of the sequence or `NaN` if the sequence is empty.
     *
     * @returns {number}
     */
    Average.prototype.average = function () {
        var sum = 0;
        var count = 0;
        for (var item = this.iterator.next(); !item.done; item = this.iterator.next()) {
            sum += item.value;
            count++;
        }
        return count === 0
            ? Number.NaN
            : sum / count;
    };
    return Average;
}());
exports.Average = Average;
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