Files
react-native/packages/react-native/Libraries/Utilities/mapWithSeparator.js
T
Ruslan Lesiutin 714b502b0c | RN Monorepo | Migrate to package (#36434)
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/36434

Changelog: [Internal]

This is a squashed stack of 18 commits, starting from D43202126

allow-large-files

Reviewed By: cortinico

Differential Revision: D43977381

fbshipit-source-id: 0da552ddb85f2f61a0be0ef071915b35f3f8555c
2023-03-17 05:03:25 -07:00

29 lines
721 B
JavaScript

/**
* Copyright (c) Meta Platforms, Inc. and affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @format
* @flow strict
*/
'use strict';
function mapWithSeparator<TFrom, TTo>(
items: Array<TFrom>,
itemRenderer: (item: TFrom, index: number, items: Array<TFrom>) => TTo,
spacerRenderer: (index: number) => TTo,
): Array<TTo> {
const mapped = [];
if (items.length > 0) {
mapped.push(itemRenderer(items[0], 0, items));
for (let ii = 1; ii < items.length; ii++) {
mapped.push(spacerRenderer(ii - 1), itemRenderer(items[ii], ii, items));
}
}
return mapped;
}
module.exports = mapWithSeparator;