test262/test/built-ins/Object/groupBy/string.js

23 lines
612 B
JavaScript

// Copyright (c) 2023 Ecma International. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-object.groupby
description: Object.groupBy works for string items
info: |
Object.groupBy ( items, callbackfn )
...
includes: [compareArray.js]
features: [array-grouping]
---*/
const string = 'abcd';
const obj = Object.groupBy(string, function (char) {
return char < 'c' ? 'before' : 'after';
});
assert.compareArray(Object.keys(obj), ['before', 'after']);
assert.compareArray(obj['before'], ['a', 'b']);
assert.compareArray(obj['after'], ['c', 'd']);