fix(js_formatter): correctly format dangling comments of continue sta…

…tement (#2555)

CHANGELOG.md

@@ -29,6 +29,8 @@ our [guidelines for writing a good changelog entry](https://github.com/biomejs/b
 
 - Add parentheses for the return expression that has leading multiline comments. [#2504](https://github.com/biomejs/biome/pull/2504). Contributed by @ah-yu
 
+- Correctly format dangling comments of continue statements. [#2555](https://github.com/biomejs/biome/pull/2555). Contributed by @ah-yu
+
 ### JavaScript APIs
 
 ### Linter

crates/biome_js_formatter/src/js/statements/continue_statement.rs

@@ -25,4 +25,17 @@ impl FormatNodeRule<JsContinueStatement> for FormatJsContinueStatement {
 
         write!(f, [FormatStatementSemicolon::new(semicolon_token.as_ref())])
     }
+
+    fn fmt_dangling_comments(
+        &self,
+        node: &JsContinueStatement,
+        f: &mut JsFormatter,
+    ) -> FormatResult<()> {
+        if !f.comments().has_dangling_comments(node.syntax()) {
+            return Ok(());
+        }
+        let content =
+            format_with(|f| write!(f, [space(), format_dangling_comments(node.syntax())]));
+        write!(f, [line_suffix(&content), expand_parent()])
+    }
 }

crates/biome_js_formatter/tests/specs/js/module/statement/continue_stmt.js

@@ -0,0 +1,4 @@
+for (const f of fs) {
+    if (condition) continue; //commment
+    else continue; // comment
+}

crates/biome_js_formatter/tests/specs/js/module/statement/continue_stmt.js.snap

@@ -0,0 +1,43 @@
+---
+source: crates/biome_formatter_test/src/snapshot_builder.rs
+info: js/module/statement/continue_stmt.js
+---
+# Input
+
+```js
+for (const f of fs) {
+    if (condition) continue; //commment
+    else continue; // comment
+}
+```
+
+
+=============================
+
+# Outputs
+
+## Output 1
+
+-----
+Indent style: Tab
+Indent width: 2
+Line ending: LF
+Line width: 80
+Quote style: Double Quotes
+JSX quote style: Double Quotes
+Quote properties: As needed
+Trailing comma: All
+Semicolons: Always
+Arrow parentheses: Always
+Bracket spacing: true
+Bracket same line: false
+Attribute Position: Auto
+-----
+
+```js
+for (const f of fs) {
+	if (condition)
+		continue; //commment
+	else continue; // comment
+}
+```