hide/disaply button added

labs/lab3/JavaScript/main.js

@@ -3,11 +3,13 @@ document.addEventListener("DOMContentLoaded", function() {
     let tableIsDisplayed = true;
     tableVisibilityButton.addEventListener("click", () => {
         if (tableIsDisplayed) {
-
+            clearTable('build')
+            tableVisibilityButton.innerHTML = "Показать таблицу";
         } else {
             showTable('build', buildings);
+            tableVisibilityButton.innerHTML = "Скрыть таблицу";
         }
-
+        tableIsDisplayed = !tableIsDisplayed;
     })
 
 })

labs/lab3/JavaScript/table.js

@@ -27,3 +27,10 @@ const showTable = (idTable, data) => {
 		.append("th")
 		.text(d => d);
 }
+
+const clearTable = (idTable) => {
+    const table = document.getElementById(idTable);
+    while (table.children.length > 0) {
+        table.removeChild(table.children[0]);
+    }
+}