diff --git a/qualdev/Td_debug/exercice.ts b/qualdev/Td_debug/exercice.ts
index a722789f03a2ad16d20730e6d197417553dec07c..0a1b69c28482ea6a0c95b49e41d96756862eae15 100644
--- a/qualdev/Td_debug/exercice.ts
+++ b/qualdev/Td_debug/exercice.ts
@@ -52,4 +52,15 @@ function deb5(): number {
     }
     return j;
 }
-console.log(deb5());
\ No newline at end of file
+console.log(deb5());
+
+// exercice6.ts
+let tab1 = [1, 2, 3];
+let tab2 = tab1;
+tab1[1] = 5;
+console.log(tab1, tab2);
+
+let tab3 = [1, 2, 3];
+let tab4 = [...tab3];
+tab3[1] = 5;
+console.log(tab3, tab4);
\ No newline at end of file