docs(plan): PageHeights.range end-exclusive matches its tests

2026-09-07 16:02:53 +08:00
parent 654e4febf1
commit e08f1dd5b9
1 changed files with 2 additions and 2 deletions
@@ -1885,8 +1885,8 @@ export class PageHeights {
  range(scrollTop: number, viewport: number, overscan: number): [number, number] {
    if (this.n === 0) return [0, 0];
    const a = Math.max(0, this.pageAt(scrollTop) - overscan);
-    const b = Math.min(this.n - 1, this.pageAt(scrollTop + viewport) + overscan);
-    return [a, b + 1];
+    const b = Math.min(this.n, this.pageAt(scrollTop + viewport) + overscan); // [start, end)
+    return [a, b];
  }
 }
 ```