From f32d9e91a55e6173a53631b7f7143ce62a8dac1f Mon Sep 17 00:00:00 2001
From: Kurnia <kurniasuryani@gmail.com>
Date: Fri, 12 Mar 2021 01:15:41 +0100
Subject: [PATCH 1/6] test successfully

---
 Week2/homework/maartjes-work.js | 94 +++++++++++++++++----------------
 Week2/homework/map-filter.js    | 14 +++--
 package-lock.json               |  6 +--
 3 files changed, 61 insertions(+), 53 deletions(-)

diff --git a/Week2/homework/maartjes-work.js b/Week2/homework/maartjes-work.js
index 49772eb44..ad0fa1b6b 100644
--- a/Week2/homework/maartjes-work.js
+++ b/Week2/homework/maartjes-work.js
@@ -1,65 +1,69 @@
 'use strict';
 
-const monday = [
-  {
-    name: 'Write a summary HTML/CSS',
-    duration: 180,
-  },
-  {
-    name: 'Some web development',
-    duration: 120,
-  },
-  {
-    name: 'Fix homework for class10',
-    duration: 20,
-  },
-  {
-    name: 'Talk to a lot of people',
-    duration: 200,
-  },
+const monday = [{
+        name: 'Write a summary HTML/CSS',
+        duration: 180,
+    },
+    {
+        name: 'Some web development',
+        duration: 120,
+    },
+    {
+        name: 'Fix homework for class10',
+        duration: 20,
+    },
+    {
+        name: 'Talk to a lot of people',
+        duration: 200,
+    },
 ];
 
-const tuesday = [
-  {
-    name: 'Keep writing summary',
-    duration: 240,
-  },
-  {
-    name: 'Some more web development',
-    duration: 180,
-  },
-  {
-    name: 'Staring out the window',
-    duration: 10,
-  },
-  {
-    name: 'Talk to a lot of people',
-    duration: 200,
-  },
-  {
-    name: 'Look at application assignments new students',
-    duration: 40,
-  },
+const tuesday = [{
+        name: 'Keep writing summary',
+        duration: 240,
+    },
+    {
+        name: 'Some more web development',
+        duration: 180,
+    },
+    {
+        name: 'Staring out the window',
+        duration: 10,
+    },
+    {
+        name: 'Talk to a lot of people',
+        duration: 200,
+    },
+    {
+        name: 'Look at application assignments new students',
+        duration: 40,
+    },
 ];
 
 const maartjesTasks = monday.concat(tuesday);
 const maartjesHourlyRate = 20;
 
 function computeEarnings(tasks, hourlyRate) {
-  // Replace this comment and the next line with your code
-  console.log(tasks, hourlyRate);
+    // Replace this comment and the next line with your code
+    const tasksRate = tasks
+        .map(time => time.duration / 60) // map durations in hours
+        .filter(time => time >= 2) //remove the duration, that is < 2 hours
+        .map(time => time * hourlyRate) //multiply each duration per hour (rate =20)
+        .reduce((total, value) => total + value); // Total sum all
+    return tasksRate;
 }
 
 // eslint-disable-next-line no-unused-vars
 const earnings = computeEarnings(maartjesTasks, maartjesHourlyRate);
 
 // add code to convert `earnings` to a string rounded to two decimals (euro cents)
+const result = earnings.toFixed(2);
 
-console.log(`Maartje has earned €${'replace this string with the earnings rounded to euro cents'}`);
+console.log(`Maartje has earned €${result}`);
 
 // Do not change or remove anything below this line
 module.exports = {
-  maartjesTasks,
-  maartjesHourlyRate,
-  computeEarnings,
-};
+    maartjesTasks,
+    maartjesHourlyRate,
+    computeEarnings,
+};
\ No newline at end of file
diff --git a/Week2/homework/map-filter.js b/Week2/homework/map-filter.js
index c8e8a88c1..f98cbb888 100644
--- a/Week2/homework/map-filter.js
+++ b/Week2/homework/map-filter.js
@@ -1,8 +1,12 @@
 'use strict';
 
 function doubleOddNumbers(numbers) {
-  // Replace this comment and the next line with your code
-  console.log(numbers);
+    // Replace this comment and the next line with your code
+    //filtered even numbers
+    const oddNumber = numbers.filter((odd) => odd % 2 !== 0);
+    //multiply the value to 2 using map
+    numbers = oddNumber.map((double) => double * 2);
+    return numbers;
 }
 
 const myNumbers = [1, 2, 3, 4];
@@ -10,6 +14,6 @@ console.log(doubleOddNumbers(myNumbers));
 
 // Do not change or remove anything below this line
 module.exports = {
-  myNumbers,
-  doubleOddNumbers,
-};
+    myNumbers,
+    doubleOddNumbers,
+};
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index b3043a79d..2c86e3861 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -598,7 +598,7 @@
     },
     "array-equal": {
       "version": "1.0.0",
-      "resolved": "http://registry.npmjs.org/array-equal/-/array-equal-1.0.0.tgz",
+      "resolved": "https://registry.npmjs.org/array-equal/-/array-equal-1.0.0.tgz",
       "integrity": "sha1-jCpe8kcv2ep0KwTHenUJO6J1fJM=",
       "dev": true
     },
@@ -5112,7 +5112,7 @@
     },
     "safe-regex": {
       "version": "1.1.0",
-      "resolved": "http://registry.npmjs.org/safe-regex/-/safe-regex-1.1.0.tgz",
+      "resolved": "https://registry.npmjs.org/safe-regex/-/safe-regex-1.1.0.tgz",
       "integrity": "sha1-QKNmnzsHfR6UPURinhV91IAjvy4=",
       "dev": true,
       "requires": {
@@ -5547,7 +5547,7 @@
     },
     "strip-eof": {
       "version": "1.0.0",
-      "resolved": "http://registry.npmjs.org/strip-eof/-/strip-eof-1.0.0.tgz",
+      "resolved": "https://registry.npmjs.org/strip-eof/-/strip-eof-1.0.0.tgz",
       "integrity": "sha1-u0P/VZim6wXYm1n80SnJgzE2Br8=",
       "dev": true
     },

From 22fe9312ab637ba568ffa270f661b307a101772b Mon Sep 17 00:00:00 2001
From: Kurnia <kurniasuryani@gmail.com>
Date: Sat, 20 Mar 2021 00:48:06 +0100
Subject: [PATCH 2/6] hw week 3 or 4

---
 Week2/homework/maartjes-work.js | 96 +++++++++++++++++----------------
 Week3/homework/step2-1.js       | 12 ++---
 Week3/homework/step2-2.js       | 31 ++++++++---
 Week3/homework/step2-3.js       | 45 +++++++++-------
 Week3/homework/step2-4.js       | 10 +++-
 Week3/homework/step2-5.js       | 23 +++++---
 Week3/homework/step2-6.js       | 31 +++++++----
 Week3/homework/step2-7.js       | 15 ++++--
 Week3/homework/step3-bonus.js   |  8 +--
 Week3/homework/step3.js         |  9 ++--
 10 files changed, 172 insertions(+), 108 deletions(-)

diff --git a/Week2/homework/maartjes-work.js b/Week2/homework/maartjes-work.js
index ad0fa1b6b..ce92a5d72 100644
--- a/Week2/homework/maartjes-work.js
+++ b/Week2/homework/maartjes-work.js
@@ -1,56 +1,58 @@
 'use strict';
 
-const monday = [{
-        name: 'Write a summary HTML/CSS',
-        duration: 180,
-    },
-    {
-        name: 'Some web development',
-        duration: 120,
-    },
-    {
-        name: 'Fix homework for class10',
-        duration: 20,
-    },
-    {
-        name: 'Talk to a lot of people',
-        duration: 200,
-    },
+const monday = [
+  {
+    name: 'Write a summary HTML/CSS',
+    duration: 180,
+  },
+  {
+    name: 'Some web development',
+    duration: 120,
+  },
+  {
+    name: 'Fix homework for class10',
+    duration: 20,
+  },
+  {
+    name: 'Talk to a lot of people',
+    duration: 200,
+  },
 ];
 
-const tuesday = [{
-        name: 'Keep writing summary',
-        duration: 240,
-    },
-    {
-        name: 'Some more web development',
-        duration: 180,
-    },
-    {
-        name: 'Staring out the window',
-        duration: 10,
-    },
-    {
-        name: 'Talk to a lot of people',
-        duration: 200,
-    },
-    {
-        name: 'Look at application assignments new students',
-        duration: 40,
-    },
+const tuesday = [
+  {
+    name: 'Keep writing summary',
+    duration: 240,
+  },
+  {
+    name: 'Some more web development',
+    duration: 180,
+  },
+  {
+    name: 'Staring out the window',
+    duration: 10,
+  },
+  {
+    name: 'Talk to a lot of people',
+    duration: 200,
+  },
+  {
+    name: 'Look at application assignments new students',
+    duration: 40,
+  },
 ];
 
 const maartjesTasks = monday.concat(tuesday);
 const maartjesHourlyRate = 20;
 
 function computeEarnings(tasks, hourlyRate) {
-    // Replace this comment and the next line with your code
-    const tasksRate = tasks
-        .map(time => time.duration / 60) // map durations in hours
-        .filter(time => time >= 2) //remove the duration, that is < 2 hours
-        .map(time => time * hourlyRate) //multiply each duration per hour (rate =20)
-        .reduce((total, value) => total + value); // Total sum all
-    return tasksRate;
+  // Replace this comment and the next line with your code
+  const tasksRate = tasks
+    .map(time => time.duration / 60) // map durations in hours
+    .filter(time => time >= 2) // remove the duration, that is < 2 hours
+    .map(time => time * hourlyRate) // multiply each duration per hour (rate =20)
+    .reduce((total, value) => total + value); // Total sum all
+  return tasksRate;
 }
 
 // eslint-disable-next-line no-unused-vars
@@ -63,7 +65,7 @@ console.log(`Maartje has earned €${result}`);
 
 // Do not change or remove anything below this line
 module.exports = {
-    maartjesTasks,
-    maartjesHourlyRate,
-    computeEarnings,
-};
\ No newline at end of file
+  maartjesTasks,
+  maartjesHourlyRate,
+  computeEarnings,
+};
diff --git a/Week3/homework/step2-1.js b/Week3/homework/step2-1.js
index d5699882c..2955cac5e 100644
--- a/Week3/homework/step2-1.js
+++ b/Week3/homework/step2-1.js
@@ -1,16 +1,16 @@
 'use strict';
 
 function foo(func) {
-  // What to do here?
-  // Replace this comment and the next line with your code
-  console.log(func);
+    // What to do here?
+    // Replace this comment and the next line with your code
+    return func;
 }
 
 function bar() {
-  console.log('Hello, I am bar!');
+    console.log('Hello, I am bar!');
 }
 
-foo(bar);
+foo(bar());
 
 // Do not change or remove anything below this line
-module.exports = foo;
+module.exports = foo;
\ No newline at end of file
diff --git a/Week3/homework/step2-2.js b/Week3/homework/step2-2.js
index dcd135040..a594b4025 100644
--- a/Week3/homework/step2-2.js
+++ b/Week3/homework/step2-2.js
@@ -1,23 +1,38 @@
+/* eslint-disable eqeqeq */
+/* eslint-disable no-use-before-define */
+/* eslint-disable prettier/prettier */
+
 'use strict';
 
 function threeFive(startIndex, stopIndex, threeCallback, fiveCallback) {
-  const numbers = [];
+    const numbers = [];
+
+    for (let i = startIndex; i <= stopIndex; i++) { numbers.push(i); }
+
+    numbers.forEach(number => {
+        // eslint-disable-next-line no-func-assign
+        sayThree = threeCallback(number);
+        // eslint-disable-next-line no-func-assign
+        sayFive = fiveCallback(number);
+
+    });
 
-  // Replace this comment and the next line with your code
-  console.log(startIndex, stopIndex, threeCallback, fiveCallback, numbers);
 }
 
 function sayThree(number) {
-  // Replace this comment and the next line with your code
-  console.log(number);
+    // eslint-disable-next-line eqeqeq
+    if (number % 3 == 0) {
+        console.log('Say three!');
+    }
 }
 
 function sayFive(number) {
-  // Replace this comment and the next line with your code
-  console.log(number);
+    if (number % 5 == 0) {
+        console.log('Say five!');
+    }
 }
 
 threeFive(10, 15, sayThree, sayFive);
 
 // Do not change or remove anything below this line
-module.exports = threeFive;
+module.exports = threeFive;
\ No newline at end of file
diff --git a/Week3/homework/step2-3.js b/Week3/homework/step2-3.js
index 00845c5eb..de976a6df 100644
--- a/Week3/homework/step2-3.js
+++ b/Week3/homework/step2-3.js
@@ -1,47 +1,54 @@
+/* eslint-disable prettier/prettier */
+
 'use strict';
 
 // Use a 'for' loop
 function repeatStringNumTimesWithFor(str, num) {
-  // eslint-disable-next-line prefer-const
-  let result = '';
+    // eslint-disable-next-line prefer-const
+    let result = '';
 
-  // Replace this comment and the next line with your code
-  console.log(str, num, result);
+    for (let i = str; num > 0; num--) {
+        result += i;
+    }
 
-  return result;
+    return result;
 }
 
 console.log('for', repeatStringNumTimesWithFor('abc', 3));
 
 // Use a 'while' loop
 function repeatStringNumTimesWithWhile(str, num) {
-  // eslint-disable-next-line prefer-const
-  let result = '';
+    // eslint-disable-next-line prefer-const
+    let result = '';
 
-  // Replace this comment and the next line with your code
-  console.log(str, num, result);
+    while (num > 0) {
+        result += str;
+        num--;
+    }
 
-  return result;
+    return result;
 }
 
 console.log('while', repeatStringNumTimesWithWhile('abc', 3));
 
 // Use a 'do...while' loop
 function repeatStringNumTimesWithDoWhile(str, num) {
-  // eslint-disable-next-line prefer-const
-  let result = '';
+    // eslint-disable-next-line prefer-const
+    let result = '';
 
-  // Replace this comment and the next line with your code
-  console.log(str, num, result);
+    do {
+        result += str;
+        num--;
+    } while (num > 0);
 
-  return result;
+    return result;
 }
 
 console.log('do-while', repeatStringNumTimesWithDoWhile('abc', 3));
 
 // Do not change or remove anything below this line
 module.exports = {
-  repeatStringNumTimesWithFor,
-  repeatStringNumTimesWithWhile,
-  repeatStringNumTimesWithDoWhile,
-};
+    repeatStringNumTimesWithFor,
+    repeatStringNumTimesWithWhile,
+    repeatStringNumTimesWithDoWhile,
+};
\ No newline at end of file
diff --git a/Week3/homework/step2-4.js b/Week3/homework/step2-4.js
index b11b1dcb6..1cad85c40 100644
--- a/Week3/homework/step2-4.js
+++ b/Week3/homework/step2-4.js
@@ -1,10 +1,16 @@
+/* eslint-disable prettier/prettier */
+
 'use strict';
 
 function Dog() {
-  // add your code here
+    // add your code here
+    this.name = 'Pluto';
+    this.color = 'brown';
+    this.numLegs = 4;
 }
 
 const hound = new Dog();
+console.log(hound);
 
 // Do not change or remove anything below this line
-module.exports = hound;
+module.exports = hound;
\ No newline at end of file
diff --git a/Week3/homework/step2-5.js b/Week3/homework/step2-5.js
index cbb54fa1d..88bc7e09d 100644
--- a/Week3/homework/step2-5.js
+++ b/Week3/homework/step2-5.js
@@ -1,17 +1,26 @@
+/* eslint-disable prettier/prettier */
+
 'use strict';
 
 function multiplyAll(arr) {
-  // eslint-disable-next-line
-  let product = 1;
+    // eslint-disable-next-line
+    let product = 1;
 
-  // Replace this comment and the next line with your code
-  console.log(arr, product);
+    for (let i = 0; i < arr.length; i++) {
+        for (let j = 0; j < arr[i].length; j++) {
+            product = product * arr[i][j];
+        }
+    }
 
-  return product;
+    return product;
 }
 
-const result = multiplyAll([[1, 2], [3, 4], [5, 6]]);
+const result = multiplyAll([
+    [1, 2],
+    [3, 4],
+    [5, 6]
+]);
 console.log(result); // 720
 
 // Do not change or remove anything below this line
-module.exports = multiplyAll;
+module.exports = multiplyAll;
\ No newline at end of file
diff --git a/Week3/homework/step2-6.js b/Week3/homework/step2-6.js
index ffe95b9f7..4d1810b43 100644
--- a/Week3/homework/step2-6.js
+++ b/Week3/homework/step2-6.js
@@ -1,16 +1,29 @@
+/* eslint-disable prettier/prettier */
+
 'use strict';
 
-const arr2d = [[1, 2], [3, 4], [5, 6]];
-const arr3d = [[[1, 2], [3, 4]], [[5, 6], [7, 8]]];
+const arr2d = [
+    [1, 2],
+    [3, 4],
+    [5, 6]
+];
+const arr3d = [
+    [
+        [1, 2],
+        [3, 4]
+    ],
+    [
+        [5, 6],
+        [7, 8]
+    ]
+];
 
 function flattenArray2d(arr) {
-  // Replace this comment and the next line with your code
-  console.log(arr);
+    return arr.reduce((acc, val) => acc.concat(val), []);
 }
 
 function flattenArray3d(arr) {
-  // Replace this comment and the next line with your code
-  console.log(arr);
+    arr.reduce((acc, val) => Array.isArray(val) ? acc.concat(flattenArray3d(val)) : acc.concat(val), []);
 }
 
 console.log(flattenArray2d(arr2d)); // -> [1, 2, 3, 4, 5, 6]
@@ -18,6 +31,6 @@ console.log(flattenArray3d(arr3d)); // -> [1, 2, 3, 4, 5, 6, 7, 8]
 
 // Do not change or remove anything below this line
 module.exports = {
-  flattenArray2d,
-  flattenArray3d,
-};
+    flattenArray2d,
+    flattenArray3d,
+};
\ No newline at end of file
diff --git a/Week3/homework/step2-7.js b/Week3/homework/step2-7.js
index 3e72e8551..d1cd94b6a 100644
--- a/Week3/homework/step2-7.js
+++ b/Week3/homework/step2-7.js
@@ -1,9 +1,12 @@
+/* eslint-disable prettier/prettier */
+
 'use strict';
 
 const x = 9;
+
 function f1(val) {
-  val = val + 1;
-  return val;
+    val = val + 1;
+    return val;
 }
 
 f1(x);
@@ -11,9 +14,10 @@ f1(x);
 console.log(x);
 
 const y = { x: 9 };
+
 function f2(val) {
-  val.x = val.x + 1;
-  return val;
+    val.x = val.x + 1;
+    return val;
 }
 
 f2(y);
@@ -21,3 +25,6 @@ f2(y);
 console.log(y);
 
 // Add your explanation as a comment here
+// f1 passed argument from x to val and print x out. But x type is const , that's why the result is 9.
+// f2 passed argument from const y by using constructor val.x
+// We can't change const value, but by using constructor can change the value of x and print out x:10
\ No newline at end of file
diff --git a/Week3/homework/step3-bonus.js b/Week3/homework/step3-bonus.js
index 917091d61..092ae1089 100644
--- a/Week3/homework/step3-bonus.js
+++ b/Week3/homework/step3-bonus.js
@@ -1,14 +1,16 @@
+/* eslint-disable prettier/prettier */
+
 'use strict';
 
 const values = ['a', 'b', 'c', 'd', 'a', 'e', 'f', 'c'];
 
 function makeUnique(arr) {
-  // Replace this comment and the next line with your code
-  console.log(arr);
+    const filterArray = () => [...new Set(arr)]
+    return filterArray();
 }
 
 const uniqueValues = makeUnique(values);
 console.log(uniqueValues);
 
 // Do not change or remove anything below this line
-module.exports = makeUnique;
+module.exports = makeUnique;
\ No newline at end of file
diff --git a/Week3/homework/step3.js b/Week3/homework/step3.js
index 292724bf4..8c0a7a56d 100644
--- a/Week3/homework/step3.js
+++ b/Week3/homework/step3.js
@@ -1,8 +1,11 @@
+/* eslint-disable prettier/prettier */
+
 'use strict';
 
 function createBase(base) {
-  // Replace this comment and the next line with your code
-  console.log(base);
+    return function(addition) {
+        return base + addition
+    }
 }
 
 const addSix = createBase(6);
@@ -11,4 +14,4 @@ console.log(addSix(10)); // returns 16
 console.log(addSix(21)); // returns 27
 
 // Do not change or remove anything below this line
-module.exports = createBase;
+module.exports = createBase;
\ No newline at end of file

From fa3a2261574a948f551a6d1f0622d500709e449f Mon Sep 17 00:00:00 2001
From: Kurnia <kurniasuryani@gmail.com>
Date: Sun, 21 Mar 2021 00:13:26 +0100
Subject: [PATCH 3/6] fixing 2-1

---
 Week3/homework/step2-1.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/Week3/homework/step2-1.js b/Week3/homework/step2-1.js
index 2955cac5e..6feb15327 100644
--- a/Week3/homework/step2-1.js
+++ b/Week3/homework/step2-1.js
@@ -1,16 +1,18 @@
+/* eslint-disable prettier/prettier */
+
 'use strict';
 
 function foo(func) {
     // What to do here?
     // Replace this comment and the next line with your code
-    return func;
+    func();
 }
 
 function bar() {
     console.log('Hello, I am bar!');
 }
 
-foo(bar());
+foo(bar);
 
 // Do not change or remove anything below this line
 module.exports = foo;
\ No newline at end of file

From 0b22f076f664e67ffa69a94b52a2b06073f27494 Mon Sep 17 00:00:00 2001
From: Kurnia <kurniasuryani@gmail.com>
Date: Sun, 21 Mar 2021 00:13:37 +0100
Subject: [PATCH 4/6] fixing 2-2

---
 Week3/homework/step2-2.js | 21 ++++++++++-----------
 1 file changed, 10 insertions(+), 11 deletions(-)

diff --git a/Week3/homework/step2-2.js b/Week3/homework/step2-2.js
index a594b4025..8e89e00ba 100644
--- a/Week3/homework/step2-2.js
+++ b/Week3/homework/step2-2.js
@@ -10,26 +10,25 @@ function threeFive(startIndex, stopIndex, threeCallback, fiveCallback) {
     for (let i = startIndex; i <= stopIndex; i++) { numbers.push(i); }
 
     numbers.forEach(number => {
-        // eslint-disable-next-line no-func-assign
-        sayThree = threeCallback(number);
-        // eslint-disable-next-line no-func-assign
-        sayFive = fiveCallback(number);
-
+        if (number % 3 === 0 && number % 5 === 0) {
+            threeCallback(number);
+            fiveCallback(number);
+        } else if (number % 3 === 0) {
+            threeCallback(number);
+        } else if (number % 5 === 0) {
+            fiveCallback(number);
+        }
     });
 
 }
 
 function sayThree(number) {
     // eslint-disable-next-line eqeqeq
-    if (number % 3 == 0) {
-        console.log('Say three!');
-    }
+    console.log(number + ' is multiplication of three.');
 }
 
 function sayFive(number) {
-    if (number % 5 == 0) {
-        console.log('Say five!');
-    }
+    console.log(number + ' is multiplication of five.');
 }
 
 threeFive(10, 15, sayThree, sayFive);

From 228e6e49ba6d751d11f300431135f7d712b69087 Mon Sep 17 00:00:00 2001
From: Kurnia <kurniasuryani@gmail.com>
Date: Sun, 21 Mar 2021 00:13:44 +0100
Subject: [PATCH 5/6] fixing 2-3

---
 Week3/homework/step2-3.js | 28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/Week3/homework/step2-3.js b/Week3/homework/step2-3.js
index de976a6df..27e153dee 100644
--- a/Week3/homework/step2-3.js
+++ b/Week3/homework/step2-3.js
@@ -7,10 +7,9 @@ function repeatStringNumTimesWithFor(str, num) {
     // eslint-disable-next-line prefer-const
     let result = '';
 
-    for (let i = str; num > 0; num--) {
-        result += i;
+    for (let i = 0; i < num; i++) {
+        result += `${str}`;
     }
-
     return result;
 }
 
@@ -20,12 +19,12 @@ console.log('for', repeatStringNumTimesWithFor('abc', 3));
 function repeatStringNumTimesWithWhile(str, num) {
     // eslint-disable-next-line prefer-const
     let result = '';
+    let i = 0;
 
-    while (num > 0) {
-        result += str;
-        num--;
+    while (i < num) {
+        result += `${str}`;
+        i++;
     }
-
     return result;
 }
 
@@ -33,13 +32,14 @@ console.log('while', repeatStringNumTimesWithWhile('abc', 3));
 
 // Use a 'do...while' loop
 function repeatStringNumTimesWithDoWhile(str, num) {
-    // eslint-disable-next-line prefer-const
     let result = '';
-
-    do {
-        result += str;
-        num--;
-    } while (num > 0);
+    let i = 0;
+    if (i < num) {
+        do {
+            i++;
+            result += `${str}`;
+        } while (i < num);
+    }
 
     return result;
 }
@@ -51,4 +51,4 @@ module.exports = {
     repeatStringNumTimesWithFor,
     repeatStringNumTimesWithWhile,
     repeatStringNumTimesWithDoWhile,
-};
\ No newline at end of file
+}
\ No newline at end of file

From 6adce5d2f436681469948632d6f1df2984f384b4 Mon Sep 17 00:00:00 2001
From: Kurnia <kurniasuryani@gmail.com>
Date: Sun, 21 Mar 2021 00:13:51 +0100
Subject: [PATCH 6/6] fixing 2-6

---
 Week3/homework/step2-6.js | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/Week3/homework/step2-6.js b/Week3/homework/step2-6.js
index 4d1810b43..2bc64c764 100644
--- a/Week3/homework/step2-6.js
+++ b/Week3/homework/step2-6.js
@@ -19,11 +19,22 @@ const arr3d = [
 ];
 
 function flattenArray2d(arr) {
-    return arr.reduce((acc, val) => acc.concat(val), []);
+    // return arr.reduce((acc, val) => acc.concat(val), []);
+    const newArr = [];
+    for (let i = 0; i < arr.length; i++) {
+        newArr.push(...arr[i]);
+    }
+    return newArr;
 }
 
 function flattenArray3d(arr) {
-    arr.reduce((acc, val) => Array.isArray(val) ? acc.concat(flattenArray3d(val)) : acc.concat(val), []);
+    // arr.reduce((acc, val) => Array.isArray(val) ? acc.concat(flattenArray3d(val)) : acc.concat(val), []);
+    const newArr = [];
+
+    for (let i = 0; i < arr.length; i++) {
+        newArr.push(...arr[i]);
+    }
+    return flattenArray2d(newArr);
 }
 
 console.log(flattenArray2d(arr2d)); // -> [1, 2, 3, 4, 5, 6]