refactoring

docs/SymptomsCausedByVaccines/js/PrrByKey2CsvConverter.js

@@ -0,0 +1,34 @@
+class PrrByKey2CsvConverter {
+
+    static convertPrrByKey2Csv({ prrByKey, keyColumn, prrColumn }) {
+        return PrrByKey2CsvConverter.#convert2Csv(
+            {
+                prrByKey: PrrByKey2CsvConverter.#quoteKeys(prrByKey),
+                keyColumn: PrrByKey2CsvConverter.#quote(keyColumn),
+                prrColumn: PrrByKey2CsvConverter.#quote(prrColumn)
+            });
+    }
+
+    static #quoteKeys(prrByKey) {
+        return Object.fromEntries(
+            Object
+                .entries(prrByKey)
+                .map(([key, prr]) => [PrrByKey2CsvConverter.#quote(key), prr]))
+    }
+
+    static #quote(str) {
+        return '"' + str + '"';
+    }
+
+    static #convert2Csv({ prrByKey, keyColumn, prrColumn }) {
+        const header = `${keyColumn},${prrColumn}`;
+        return `${header}\n${PrrByKey2CsvConverter.#convertDict2Csv(prrByKey)}`;
+    }
+
+    static #convertDict2Csv(dict) {
+        return Object
+            .entries(dict)
+            .map(([key, value]) => `${key},${value}`)
+            .join('\n');
+    }
+}

docs/SymptomsCausedByVaccines/js/PrrByVaccineTableView.js

@@ -35,7 +35,14 @@ class PrrByVaccineTableView {
         UIUtils.downloadUrlAsFilename(
             window.URL.createObjectURL(
                 new Blob(
-                    [Utils.convertDict2CSV(this.#prrByVaccine)],
+                    [
+                        PrrByKey2CsvConverter.convertPrrByKey2Csv(
+                            {
+                                prrByKey: this.#prrByVaccine,
+                                keyColumn: 'Vaccine',
+                                prrColumn: 'Proportional Reporting Ratio'
+                            })
+                    ],
                     { type: 'text/csv' })),
             this.#symptom
         );