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// @allowJs: true
// @outDir: dist/
// @declaration: true
// @filename: jsFileFunctionOverloads.js
/**
* @overload
* @param {number} x
* @returns {'number'}
*/
/**
* @overload
* @param {string} x
* @returns {'string'}
*/
/**
* @overload
* @param {boolean} x
* @returns {'boolean'}
*/
/**
* @param {unknown} x
* @returns {string}
*/
function getTypeName(x) {
return typeof x;
}
/**
* @template T
* @param {T} x
* @returns {T}
*/
const identity = x => x;
/**
* @template T
* @template U
* @overload
* @param {T[]} array
* @param {(x: T) => U[]} iterable
* @returns {U[]}
*/
/**
* @template T
* @overload
* @param {T[][]} array
* @returns {T[]}
*/
/**
* @param {unknown[]} array
* @param {(x: unknown) => unknown} iterable
* @returns {unknown[]}
*/
function flatMap(array, iterable = identity) {
/** @type {unknown[]} */
const result = [];
for (let i = 0; i < array.length; i += 1) {
result.push(.../** @type {unknown[]} */(iterable(array[i])));
}
return result;
}
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