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//// [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;
}
//// [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}
*/
var identity = function (x) { return 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) {
if (iterable === void 0) { iterable = identity; }
/** @type {unknown[]} */
var result = [];
for (var i = 0; i < array.length; i += 1) {
result.push.apply(result, /** @type {unknown[]} */ (iterable(array[i])));
}
return result;
}
//// [jsFileFunctionOverloads.d.ts]
declare function getTypeName(x: number): 'number';
declare function getTypeName(x: string): 'string';
declare function getTypeName(x: boolean): 'boolean';
declare function flatMap<T, U>(array: T[], iterable: (x: T) => U[]): U[];
declare function flatMap<T>(array: T[][]): T[];
/**
* @template T
* @param {T} x
* @returns {T}
*/
declare function identity<T>(x: T): T;
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