rc-js-util/bin/cjs/map/impl/map-first-value.js

A collection of TS and C++ utilities to help writing performant and correct applications, achieved through strict typing and (removable) invariant checking.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.mapFirstValue = void 0;
/**
 * @public
 * Gets the first inserted value in a `Map`.
 *
 * @returns The first value in `map`, otherwise `undefined` where size 0.
 *
 * @remarks
 * See {@link mapFirstValue}.
 */
function mapFirstValue(map) {
    return map
        .values()
        .next()
        .value;
}
exports.mapFirstValue = mapFirstValue;
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