diff --git a/11_Day/11_day_destructuring_and_spread.md b/11_Day/11_day_destructuring_and_spread.md
index 60234bd4..75e8d4ce 100644
--- a/11_Day/11_day_destructuring_and_spread.md
+++ b/11_Day/11_day_destructuring_and_spread.md
@@ -601,11 +601,15 @@ const users = [
### Exercises: Level 3
1. Destructure the countries object print name, capital, population and languages of all countries
-2. A junior developer structure student name, skills and score in array of arrays which may not easy to read. Destruction the following array name to name, skills array to skills, scores array to scores, JavaScript score to jsScore and React score to reactScore variable.
+2. A junior developer structure student name, skills and score in array of arrays which may not easy to read. Destructure the following array name to name, skills array to skills, scores array to scores, JavaScript score to jsScore and React score to reactScore variable in one line.
```js
const student = ['David', ['HTM', 'CSS', 'JS', 'React'], [98, 85, 90, 95]]
- console.log(name, skills, scores, jsScore, reactScore)
+ console.log(name, skills, jsScore, reactScore)
+ ```
+
+ ```sh
+ David (4) ["HTM", "CSS", "JS", "React"] 90 95
```
3. Write a function called *convertArrayToObject* which can convert the array to a structure object.
diff --git a/12_Day/12_day_regular_expressions.md b/12_Day/12_day_regular_expressions.md
index 676085a5..b65d2330 100644
--- a/12_Day/12_day_regular_expressions.md
+++ b/12_Day/12_day_regular_expressions.md
@@ -454,29 +454,28 @@ distance = 12
```
```sh
- [(6, 'love'),
- (5, 'you'),
- (3, 'can'),
- (2, 'what'),
- (2, 'teaching'),
- (2, 'not'),
- (2, 'else'),
- (2, 'do'),
- (2, 'I'),
- (1, 'which'),
- (1, 'to'),
- (1, 'the'),
- (1, 'something'),
- (1, 'if'),
- (1, 'give'),
- (1, 'develop'),
- (1, 'capabilities'),
- (1, 'application'),
- (1, 'an'),
- (1, 'all'),
- (1, 'Python'),
- (1, 'If')
- ]
+ [{'love':6},
+ {'you':5},
+ {'can':3},
+ {'what':2},
+ {'teaching':2},
+ {'not':2},
+ {'else':2},
+ {'do':2},
+ {'I':2},
+ {'which':1},
+ {'to':1},
+ {'the':1},
+ {'something':1},
+ {'if':1},
+ {'give':1},
+ {'develop':1},
+ {'capabilities':1},
+ {'application':1},
+ {'an':1},
+ {'all':1},
+ {'Python':1},
+ {'If':1}]
```
```js
@@ -484,17 +483,16 @@ distance = 12
```
```sh
- [ (6, 'love'),
- (5, 'you'),
- (3, 'can'),
- (2, 'what'),
- (2, 'teaching'),
- (2, 'not'),
- (2, 'else'),
- (2, 'do'),
- (2, 'I'),
- (1, 'which')
- ]
+ [{'love':6},
+ {'you':5},
+ {'can':3},
+ {'what':2},
+ {'teaching':2},
+ {'not':2},
+ {'else':2},
+ {'do':2},
+ {'I':2},
+ {'which':1}]
```
### Exercises: Level 3
diff --git a/20_Day/12_day_starter/index.html b/20_Day/12_day_starter/index.html
deleted file mode 100644
index 6efcab4f..00000000
--- a/20_Day/12_day_starter/index.html
+++ /dev/null
@@ -1,17 +0,0 @@
-
-
-
-
- 30DaysOfJavaScript:11 Day
-
-
-
- 30DaysOfJavaScript:11 Day
- Destructuring and Spread
-
-
-
-
-
-
-
\ No newline at end of file
diff --git a/20_Day/12_day_starter/data/countries_data.js b/20_Day/19_day_starter/data/countries_data.js
similarity index 100%
rename from 20_Day/12_day_starter/data/countries_data.js
rename to 20_Day/19_day_starter/data/countries_data.js
diff --git a/20_Day/19_day_starter/index.html b/20_Day/19_day_starter/index.html
new file mode 100644
index 00000000..f51dfe55
--- /dev/null
+++ b/20_Day/19_day_starter/index.html
@@ -0,0 +1,17 @@
+
+
+
+
+ 30DaysOfJavaScript:19 Day
+
+
+
+ 30DaysOfJavaScript:19 Day
+ Writing clean code
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/20_Day/12_day_starter/scripts/main.js b/20_Day/19_day_starter/scripts/main.js
similarity index 100%
rename from 20_Day/12_day_starter/scripts/main.js
rename to 20_Day/19_day_starter/scripts/main.js