sequency/lib/partition.js

Functional sequences for processing iterable data in JavaScript

Object.defineProperty(exports, "__esModule", { value: true });
exports.Partition = void 0;
var Partition = /** @class */ (function () {
    function Partition() {
    }
    /**
     * Evaluates the given `predicate` for each element of the sequence and assorts each element into one of two lists
     * according to the result of the predicate. Returns both lists as an object.
     *
     * @param {(value: T) => boolean} predicate
     * @returns {{true: Array<T>; false: Array<T>}}
     */
    Partition.prototype.partition = function (predicate) {
        var arrayTrue = [];
        var arrayFalse = [];
        for (var item = this.iterator.next(); !item.done; item = this.iterator.next()) {
            if (predicate(item.value)) {
                arrayTrue.push(item.value);
            }
            else {
                arrayFalse.push(item.value);
            }
        }
        return { "true": arrayTrue, "false": arrayFalse };
    };
    return Partition;
}());
exports.Partition = Partition;
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