diff --git a/qualdev/TD-Debug.ts b/qualdev/TD-Debug.ts
index 89d7b696c2bb5308c2b4200103e3756998cbeeb6..2c5a5b07809a11b5b0e6dd04d8c927502a4405e6 100644
--- a/qualdev/TD-Debug.ts
+++ b/qualdev/TD-Debug.ts
@@ -58,8 +58,8 @@ function deb3(xy: number[]): void {
 // exo 5 : etude porté de variables
 
 let j = 10;
-deb4();
-console.log(j);
+//deb4();
+//console.log(j);
 
 function deb4(): number {
   let j = 25;
@@ -69,3 +69,22 @@ function deb4(): number {
   }
   return j;
 }
+
+
+//exo 6 : copie par reference et spread
+
+
+let tab11 = [1, 2, 3];
+let tab21 = tab11;
+
+tab11[1] = 5;
+
+console.log(tab11, tab21); 
+
+
+let tab12 = [1, 2, 3];
+let tab22 = [...tab12];
+
+tab12[1] = 5;
+
+console.log(tab12, tab22);