17.diff

@@ -1,6 +1,6 @@
 function generateReadReport(readList, recommendList) {
   const reportData = createReportData(readList, recommendList);
-  return renderPlainText(reportData, recommendList);
+  return renderPlainText(reportData);
 }

 function createReportData(readList, recommendList) {
@@ -42,7 +42,7 @@ function createReportData(readList, recommendList) {
   }
 }

-function renderPlainText(reportData, recommendList) {
+function renderPlainText(reportData) {
   let report = `name: ${reportData.userName}\n`;
   report += '-----\n';
   for (let book of reportData.readBooks) {