fix: check undefined format

nodejs · Jan 27, 2025 · 722b484 · 722b484
1 parent 96dba79
commit 722b484
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/src/strip-loader.ts b/src/strip-loader.ts
@@ -11,7 +11,7 @@ export async function load(
 	) => LoadFnOutput | Promise<LoadFnOutput>,
 ) {
 	const { format } = context;
-	if (format.endsWith("-typescript")) {
+	if (format?.endsWith("-typescript")) {
 		// Use format 'module' so it returns the source as-is, without stripping the types.
 		// Format 'commonjs' would not return the source for historical reasons.
 		try {

diff --git a/src/transform-loader.ts b/src/transform-loader.ts
@@ -12,7 +12,7 @@ export async function load(
 	) => LoadFnOutput | Promise<LoadFnOutput>,
 ) {
 	const { format } = context;
-	if (format.endsWith("-typescript")) {
+	if (format?.endsWith("-typescript")) {
 		try {
 			// Use format 'module' so it returns the source as-is, without stripping the types.
 			// Format 'commonjs' would not return the source for historical reasons.