diff options
Diffstat (limited to 'src/data')
| -rw-r--r-- | src/data/composite/data/withSortedList.js | 22 |
1 files changed, 8 insertions, 14 deletions
diff --git a/src/data/composite/data/withSortedList.js b/src/data/composite/data/withSortedList.js index 51309e19..9ee0766b 100644 --- a/src/data/composite/data/withSortedList.js +++ b/src/data/composite/data/withSortedList.js @@ -107,20 +107,14 @@ export default templateCompositeFrom({ }; const stableToUnstable = - symbols - .map( - (current, index) => - (index === 0 - ? false - : isEqual(current, symbols[index - 1]))) - .reduce( - (accumulator, equalsPrevious, index) => - (index === 0 - ? accumulator - : (equalsPrevious - ? push(accumulator, accumulator.at(-1)) - : push(accumulator, accumulator.at(-1) + 1))), - [0]); + symbols.reduce( + (accumulator, current, index) => + (index === 0 + ? push(accumulator, 0) + : (isEqual(current, symbols[index - 1]) + ? push(accumulator, accumulator.at(-1)) + : push(accumulator, accumulator.at(-1) + 1))), + []); const unstableSortIndices = originalIndices |