use accumulateSum util where appropriate

2 files changed, 8 insertions, 4 deletions

diff --git a/src/page/album-commentary.js b/src/page/album-commentary.js
index a0ac8d94..50a2aa39 100644
--- a/src/page/album-commentary.js
+++ b/src/page/album-commentary.js
@@ -1,5 +1,6 @@
 // Album commentary page and index specifications.
 
+import {accumulateSum} from '../util/sugar.js';
 import {filterAlbumsByCommentary} from '../util/wiki-data.js';
 
 export function condition({wikiData}) {
@@ -93,8 +94,8 @@ export function writeTargetless({wikiData}) {
       words: entries.join(' ').split(' ').length,
     }));
 
-  const totalEntries = data.reduce((acc, {entries}) => acc + entries.length, 0);
-  const totalWords = data.reduce((acc, {words}) => acc + words, 0);
+  const totalEntries = accumulateSum(data, ({entries}) => entries.length);
+  const totalWords = accumulateSum(data, ({words}) => words);
 
   const page = {
     type: 'page',
diff --git a/src/util/wiki-data.js b/src/util/wiki-data.js
index 7d2cfa9f..f044b2a1 100644
--- a/src/util/wiki-data.js
+++ b/src/util/wiki-data.js
@@ -1,6 +1,9 @@
 // Utility functions for interacting with wiki data.
 
-import {empty} from './sugar.js';
+import {
+  accumulateSum,
+  empty,
+} from './sugar.js';
 
 // Generic value operations
 
@@ -382,7 +385,7 @@ export function getFlashLink(flash) {
 }
 
 export function getTotalDuration(tracks) {
-  return tracks.reduce((duration, track) => duration + track.duration, 0);
+  return accumulateSum(tracks, track => track.duration);
 }
 
 export function getTrackCover(track, {to}) {