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Diffstat (limited to 'node_modules/fbjs/lib/isEmpty.js.flow')
-rw-r--r-- | node_modules/fbjs/lib/isEmpty.js.flow | 44 |
1 files changed, 0 insertions, 44 deletions
diff --git a/node_modules/fbjs/lib/isEmpty.js.flow b/node_modules/fbjs/lib/isEmpty.js.flow deleted file mode 100644 index da8cc0278..000000000 --- a/node_modules/fbjs/lib/isEmpty.js.flow +++ /dev/null @@ -1,44 +0,0 @@ -/** - * Copyright (c) 2013-present, Facebook, Inc. - * - * This source code is licensed under the MIT license found in the - * LICENSE file in the root directory of this source tree. - * - * @providesModule isEmpty - * @flow - */ - -'use strict'; - -/* eslint-disable fb-www/typeof-undefined */ -/* eslint-disable no-unused-vars */ - -const invariant = require('./invariant'); - -/** - * Checks if a value is empty. - */ -function isEmpty(value: mixed): boolean { - if (Array.isArray(value)) { - return value.length === 0; - } else if (typeof value === 'object') { - if (value) { - invariant(!isIterable(value) || value.size === undefined, 'isEmpty() does not support iterable collections.'); - for (const _ in value) { - return false; - } - } - return true; - } else { - return !value; - } -} - -function isIterable(value: any): boolean { - if (typeof Symbol === 'undefined') { - return false; - } - return value[Symbol.iterator]; -} - -module.exports = isEmpty;
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