hkt-toolbelt/object/at-key.js

Functional and composable type utilities

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.atKey = void 0;
const __1 = require("..");
/**
 * Given an object and a key, return the value at the specified key.
 *
 * @param {Record<PropertyKey, unknown>} x - The object to get the value from.
 * @param {PropertyKey} k - The key to get the value of.
 *
 * @example
 * ```ts
 * import { Object } from "hkt-toolbelt";
 *
 * const result = Object.atKey({ a: 1, b: 2, c: 3 })('a')
 * //    ^? 1
 * ```
 */
exports.atKey = ((x) => (k) => k in x ? x[k] : __1.Type.never);