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Diffstat (limited to 'node_modules/fbjs/lib/distinctArray.js.flow')
-rw-r--r-- | node_modules/fbjs/lib/distinctArray.js.flow | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/node_modules/fbjs/lib/distinctArray.js.flow b/node_modules/fbjs/lib/distinctArray.js.flow new file mode 100644 index 000000000..98479d664 --- /dev/null +++ b/node_modules/fbjs/lib/distinctArray.js.flow @@ -0,0 +1,23 @@ +/** + * Copyright (c) 2013-present, Facebook, Inc. + * All rights reserved. + * + * This source code is licensed under the BSD-style license found in the + * LICENSE file in the root directory of this source tree. An additional grant + * of patent rights can be found in the PATENTS file in the same directory. + * + * @providesModule distinctArray + * @flow + */ + +var Set = require('./Set'); + +/** + * Returns the distinct elements of an iterable. The result is an array whose + * elements are ordered by first occurrence. + */ +function distinctArray<T>(xs: Iterable<T>): Array<T> { + return Array.from(new Set(xs).values()); +} + +module.exports = distinctArray;
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