Fixed double quotes copy and paste bug

components/dash-table/src/dash-table/utils/TableClipboardHelper.ts

@@ -98,7 +98,7 @@ export default class TableClipboardHelper {
             ? TableClipboardHelper.localCopyWithoutHeaders
             : TableClipboardHelper.lastLocalCopy;
         const values =
-            localDf === text ? localCopy : SheetClip.prototype.parse(text);
+            localDf === text ? localCopy : TableClipboardHelper.parse(text);
 
         return applyClipboardToData(
             values,
@@ -111,4 +111,13 @@ export default class TableClipboardHelper {
             overflowRows
         );
     }
+
+    private static parse(str: string) {
+        const temprows = str.split('\n');
+        if (temprows.length > 1 && temprows[temprows.length - 1] === '') {
+            temprows.pop();
+        }
+        const rows = temprows.map(row => row.split('\t'));
+        return rows;
+    }
 }

components/dash-table/tests/selenium/test_basic_copy_paste.py

@@ -51,6 +51,17 @@ def get_app():
                 cell_selectable=False,
                 sort_action="native",
             ),
+            DataTable(
+                id="table4",
+                data=[{"string": 'a""b', "int": 10}, {"string": "hello", "int": 11}],
+                columns=[
+                    {"name": "string", "id": "string"},
+                    {"name": "int", "id": "int"},
+                ],
+                editable=True,
+                sort_action="native",
+                include_headers_on_copy_paste=True,
+            ),
         ]
     )
 
@@ -334,3 +345,24 @@ def test_tbcp010_copy_from_unselectable_cells_table(test):
     assert target.cell(1, 1).get_text() == source.cell(2, 2).get_text()
 
     assert test.get_log_errors() == []
+
+
+def test_tbcp011_copy_double_quotes(test):
+    test.start_server(get_app())
+
+    source = test.table("table4")
+    target = test.table("table2")
+
+    source.cell(0, 0).click()
+    with test.hold(Keys.SHIFT):
+        source.cell(0, 1).click()
+
+    test.copy()
+    target.cell(0, 0).click()
+    test.paste()
+
+    for row in range(1):
+        for col in range(2):
+            assert target.cell(row, col).get_text() == source.cell(row, col).get_text()
+
+    assert test.get_log_errors() == []