Use Map.prototype.getOrInsertComputed() in the editorStats getter

Snuffleupagus · Snuffleupagus · commit bfe265ad31fa · 2026-02-22T15:10:02.000+01:00
diff --git a/src/display/annotation_storage.js b/src/display/annotation_storage.js
@@ -260,13 +260,8 @@ class AnnotationStorage {
         if (key === "type") {
           continue;
         }
-        let counters = map.get(key);
-        if (!counters) {
-          counters = new Map();
-          map.set(key, counters);
-        }
-        const count = counters.get(val) ?? 0;
-        counters.set(val, count + 1);
+        const counters = map.getOrInsertComputed(key, () => new Map());
+        counters.set(val, (counters.get(val) ?? 0) + 1);
       }
     }
     if (numberOfDeletedComments > 0 || numberOfEditedComments > 0) {

Original file line number	Diff line number	Diff line change
`@@ -260,13 +260,8 @@ class AnnotationStorage {`
`260`	`260`	`if (key === "type") {`
`261`	`261`	`continue;`
`262`	`262`	`}`
`263`		`- let counters = map.get(key);`
`264`		`- if (!counters) {`
`265`		`- counters = new Map();`
`266`		`- map.set(key, counters);`
`267`		`- }`
`268`		`- const count = counters.get(val) ?? 0;`
`269`		`- counters.set(val, count + 1);`
	`263`	`+ const counters = map.getOrInsertComputed(key, () => new Map());`
	`264`	`+ counters.set(val, (counters.get(val) ?? 0) + 1);`
`270`	`265`	`}`
`271`	`266`	`}`
`272`	`267`	`if (numberOfDeletedComments > 0 \|\| numberOfEditedComments > 0) {`