handlich vaccines in UI

docs/SymptomsCausedByVaccines/js/PrrBySymptomTable.js

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+class PrrBySymptomTable {
+
+    #tableElement;
+    #table;
+    #sumPrrs;
+
+    constructor(tableElement) {
+        this.#tableElement = tableElement;
+    }
+
+    initialize() {
+        this.#table = this.#createEmptyTable();
+    }
+
+    display(prrBySymptom) {
+        const symptom_prr_pairs = Object.entries(prrBySymptom);
+        this.#setTableRows(symptom_prr_pairs);
+    }
+
+    #createEmptyTable() {
+        return this.#tableElement.DataTable(
+            {
+                search:
+                {
+                    return: false
+                },
+                processing: true,
+                deferRender: true,
+                order: [[this.#getColumnIndex('Proportional Reporting Ratio > 1'), "desc"]],
+                columnDefs:
+                    [
+                        {
+                            searchable: false,
+                            targets: [this.#getColumnIndex('Proportional Reporting Ratio > 1')]
+                        },
+                        {
+                            render: prr =>
+                                NumberWithBarElementFactory
+                                    .createNumberWithBarElement(
+                                        {
+                                            number: prr,
+                                            barLenInPercent: prr / this.#sumPrrs * 100
+                                        })
+                                    .outerHTML,
+                            targets: [this.#getColumnIndex('Proportional Reporting Ratio > 1')]
+                        }
+                    ]
+            });
+    }
+
+    #getColumnIndex(columnName) {
+        switch (columnName) {
+            case 'Symptom':
+                return 0;
+            case 'Proportional Reporting Ratio > 1':
+                return 1;
+        }
+    }
+
+    #setTableRows(symptom_prr_pairs) {
+        this.#sumPrrs = this.#getSumPrrs(symptom_prr_pairs);
+        this.#table
+            .clear()
+            .rows.add(symptom_prr_pairs)
+            .draw();
+    }
+
+    #getSumPrrs(symptom_prr_pairs) {
+        const prrs = symptom_prr_pairs.map(symptom_prr_pair => symptom_prr_pair[1])
+        return Utils.sum(prrs);
+    }
+}