tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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groupLength.js (751B)

      1 // Copyright (c) 2023 Ecma International.  All rights reserved.
      2 // This code is governed by the BSD license found in the LICENSE file.
      3 
      4 /*---
      5 esid: sec-object.groupby
      6 description: Callback can return numbers that are converted to property keys
      7 info: |
      8  Object.groupBy ( items, callbackfn )
      9 
     10  ...
     11  GroupBy ( items, callbackfn, coercion )
     12 
     13  6. Repeat,
     14    c. If next is false, then
     15      i. Return groups.
     16  ...
     17 includes: [compareArray.js]
     18 features: [array-grouping]
     19 ---*/
     20 
     21 const arr = ['hello', 'test', 'world'];
     22 
     23 const obj = Object.groupBy(arr, function (i) { return i.length; });
     24 
     25 assert.compareArray(Object.keys(obj), ['4', '5']);
     26 assert.compareArray(obj['5'], ['hello', 'world']);
     27 assert.compareArray(obj['4'], ['test']);
     28 
     29 reportCompare(0, 0);