Zephyr Koo

Zephyr Koo

16
48510 XP

My Courses

C# Tutorial

8888 XP

JavaScript Tutorial

7089 XP

HTML Fundamentals

6666 XP

Java Tutorial

5555 XP

PHP Tutorial

970 XP

Python 3 Tutorial

988 XP

C++ Tutorial

660 XP

Ruby Tutorial

319 XP

CSS Fundamentals

318 XP

Swift 4 Fundamentals

304 XP

SQL Fundamentals

182 XP

jQuery Tutorial

171 XP

C Tutorial

0 XP


My Codes

cs
Type Conversion Int32

Last Modified: 05/06/2019 15:41:26

7

cs
Online Text Fetcher

Last Modified: 10/18/2018 05:59:56

6

cs
Hello Myself × Console.WriteLine

Last Modified: 07/21/2018 15:39:58

7

web
💡 Code Playground Js Execution Order

Last Modified: 05/09/2018 06:24:33

32

cs
Leet Message (LINQ is ❀)

Last Modified: 02/04/2018 02:32:57

34

py
💡 Python Scope Demo

Last Modified: 01/05/2018 03:25:53

25

web
ES Must-Know ❀ (Arrow, Template, Map + Filter + Reduce)

Last Modified: 01/01/2018 13:54:44

19

cs
Mail Merge Challenge 📧

Last Modified: 12/24/2017 05:03:12

29

cs
StringNum Sorter (LINQ is ❀)

Last Modified: 12/24/2017 04:18:22

34

web
SL ⚑ Chat (v.0.9.9) × COTD

Last Modified: 12/10/2017 09:59:34

642

cs
Longest Consonants (LINQ is ❀)

Last Modified: 12/07/2017 05:32:57

21

cs
sqrt(5) Derivation with Fibonacci

Last Modified: 11/26/2017 06:21:07

17

cs
Hollow Triangle Pattern Challenge (LINQ is ❀)

Last Modified: 11/24/2017 14:15:57

28

cs
Sentence Capitalizer (LINQ is ❀)

Last Modified: 11/22/2017 14:52:11

35

cs
Reversal Friends Challenge (2 Digits)

Last Modified: 11/15/2017 05:13:04

36

cs
Digit Arrangement Challenge 🔢

Last Modified: 11/10/2017 14:04:23

21

cs
Probability Demo (LawOfLargeNumber)

Last Modified: 11/09/2017 15:13:25

23

cs
Prime Product Challenge (LINQ is ❀)

Last Modified: 11/05/2017 14:59:34

23

cs
Kaprekar Constant Challenge

Last Modified: 11/03/2017 10:12:44

28

Trivalent Integer Array with Stream API

Last Modified: 10/31/2017 05:30:59

24

cs
Repeating Decimal Challenge

Last Modified: 10/28/2017 16:03:16

20

cs
XY Marker (LINQ is ❀)

Last Modified: 10/23/2017 13:10:50

26

cs
Hexagon Pattern Challenge (LINQ is ❀)

Last Modified: 10/23/2017 12:55:25

20

cs
Largest in Subarray List Challenge

Last Modified: 10/23/2017 08:44:04

20

cs
Subarray Consecutive Sum Challenge

Last Modified: 10/23/2017 08:25:35

17

cs
Color Hex Triplet ❀💚💙 (this.Challenge)

Last Modified: 10/23/2017 03:33:54

13

cs
Oracle Cloud String Filter (Interview ❀)

Last Modified: 10/20/2017 06:35:42

18

cs
Syntax Error @ tt junior

Last Modified: 10/20/2017 05:02:50

13

web
Animation Debug @ Forge Ice

Last Modified: 10/19/2017 05:32:54

19

cs
Octagon Pattern Challenge (LINQ is ❀)

Last Modified: 10/19/2017 02:38:33

14

cs
Josephus Challenge with Visualization

Last Modified: 10/19/2017 02:28:14

12

cs
Pronic Number Challenge

Last Modified: 10/18/2017 12:22:37

15

cs
Hollow Alphabet Pyramid Pattern 🔺

Last Modified: 10/18/2017 12:19:49

14

cs
Right Reverse Alphabet Pattern 🔡

Last Modified: 10/18/2017 10:16:25

17

cs
Number Pattern 1 22 333 (LINQ is ❀)

Last Modified: 10/18/2017 10:15:38

13

cs
Number Pattern 122333 (LINQ is ❀)

Last Modified: 10/18/2017 10:13:12

12

cs
Elevator Packing Challenge (LINQ is ❀)

Last Modified: 10/18/2017 10:06:51

12

💡 Pokemon OOP Demo ⚑

Last Modified: 10/18/2017 08:17:44

19

💡 Switch vs if-else (fall-through)

Last Modified: 10/18/2017 03:42:21

79

💡 String vs Character Array

Last Modified: 10/18/2017 03:42:16

15

cs
Disarium Number (LINQ is ❀)

Last Modified: 10/17/2017 11:58:56

15

cs
Compute String Arithmetic Expression 🔢

Last Modified: 10/17/2017 04:20:05

12

cs
Substring Reversal (this.Challenge)

Last Modified: 10/16/2017 14:41:34

10

cs
Unique Substring Challenge (LINQ is ❀)

Last Modified: 10/16/2017 14:12:38

10

cs
Car License Plate Challenge 🚘

Last Modified: 10/16/2017 04:42:12

13

cs
Partial Reverse Order (LINQ is ❀)

Last Modified: 10/16/2017 04:30:50

16

cs
String Letter Filter (LINQ is ❀)

Last Modified: 10/16/2017 04:26:24

32

cs
Numeric Display Challenge 👶🔢

Last Modified: 10/11/2017 15:16:56

13

cs
Egyptian Fraction Challenge (Unit Fractions Sum)

Last Modified: 10/09/2017 12:38:27

13

cs
Roller Coaster Number 🎢 (this.Challenge)

Last Modified: 10/09/2017 04:03:21

9

cs
Palindrome Counter (LINQ is ❀)

Last Modified: 10/07/2017 02:34:13

11

cs
💡 String Replace Assignment

Last Modified: 10/06/2017 15:40:59

20

cs
💡 Method Invocation via Reflection

Last Modified: 10/06/2017 15:40:49

14

cs
Range Maximum (LINQ is ❀)

Last Modified: 10/06/2017 11:55:54

13

cs
Number Triangle Display Challenge

Last Modified: 10/06/2017 10:33:35

15

cs
💡 Default Initialization

Last Modified: 10/05/2017 04:52:42

7

web
💡 Image Text Alignment (🐱 ver.)

Last Modified: 10/05/2017 04:38:42

18

web
💥RegEx Superman💥 (xkcd)

Last Modified: 10/04/2017 08:26:07

18

cs
SoloLearn Leaderboard (this.Challenge)

Last Modified: 10/02/2017 02:58:48

10

py
Python Regex (Lesson 4)

Last Modified: 10/01/2017 15:46:43

37

cs
Ripped Number Challenge

Last Modified: 10/01/2017 11:40:46

15

cs
Password Generator Challenge (LINQ is ❀)

Last Modified: 09/29/2017 08:34:05

62

cs
Multiplication Table (×10)

Last Modified: 09/29/2017 08:32:09

22

cs
String Organizer Challenge (LINQ is ❀)

Last Modified: 09/29/2017 08:06:56

13

cs
Niven Number Challenge (LINQ is ❀)

Last Modified: 09/28/2017 03:01:47

18

cs
Triangle Multiplier Pattern (Interview ❀)

Last Modified: 09/27/2017 09:34:14

15

cs
String Cutter (RegEx is ❀)

Last Modified: 09/27/2017 07:56:14

38

cs
Look and Say Challenge 👀💋

Last Modified: 09/27/2017 06:34:23

38

cs
Happy Number (^_^)Y

Last Modified: 09/27/2017 06:16:59

10

web
ol ol ol li 👀💡

Last Modified: 09/26/2017 05:38:23

15

cs
Armstrong Number Challenge (LINQ is ❀)

Last Modified: 09/24/2017 05:05:59

16

cs
Cash Register Challenge (freeCodeCamp)

Last Modified: 09/22/2017 04:47:01

13

cs
Interleave Sort Challenge (LINQ is ❀)

Last Modified: 09/21/2017 12:09:25

14

cs
Swap First & Last Digit (Challenge)

Last Modified: 09/21/2017 05:50:00

13

cs
Replace First & Last Digit (Challenge)

Last Modified: 09/21/2017 05:35:07

14

cs
Find Common Numbers (LINQ is ❀)

Last Modified: 09/20/2017 16:49:03

13

web
Nikky Web Code v1 (Mixed Content Issue)

Last Modified: 09/19/2017 07:20:15

10

web
Nikky Web Code v2 (WebView Issue)

Last Modified: 09/19/2017 07:20:06

7

cs
Chosen One Challenge (LINQ is ❀)

Last Modified: 09/18/2017 13:19:49

14

cs
Refactorable Number Challenge (LINQ is ❀)

Last Modified: 09/18/2017 02:57:32

13

cs
LCM Range Challenge (LINQ is ❀)

Last Modified: 09/17/2017 04:17:15

10

cs
StringNum Conversion (Daily Mini Challenge)

Last Modified: 09/17/2017 04:10:15

18

cs
Factorial (LINQ is ❀)

Last Modified: 09/15/2017 10:28:06

7

cs
Longest Path @ Matrix

Last Modified: 09/15/2017 09:27:28

31

cs
Diagonal Difference (HackerRank)

Last Modified: 09/15/2017 06:17:54

9

cs
To Wrap or Not To Wrap (this.Challenge)

Last Modified: 09/14/2017 14:23:11

15

cs
Password Cracking Challenge (LINQ is ❀)

Last Modified: 09/11/2017 05:29:26

9

cs
Fibonacci-like Multiplication Sequence Generator

Last Modified: 09/08/2017 13:54:26

7

cs
Superperfect Number (Challenge)

Last Modified: 09/08/2017 12:35:28

22

cs
XOR Toggle Alphabet Case (LINQ is ❀)

Last Modified: 09/07/2017 09:03:52

7

cs
String Accumulator (LINQ is ❀)

Last Modified: 09/05/2017 09:37:25

7

cs
Safe Cracking Problem (2009 AIO)

Last Modified: 09/05/2017 07:19:22

6

cs
Circular Moving Sum (LINQ is ❀)

Last Modified: 08/29/2017 03:16:08

9

cs
Number Set (LINQ is ❀)

Last Modified: 08/28/2017 16:54:50

7

cs
BCD Binary Summit (Daily Dose)

Last Modified: 08/25/2017 03:20:13

14

cs
Quark Pair (Code of the Day)

Last Modified: 08/25/2017 03:10:16

18

cs
String Frequency (Daily Challenge)

Last Modified: 08/25/2017 03:09:15

17

cs
Flyn Number (Daily Challenge)

Last Modified: 08/25/2017 03:06:53

17


My Certificates

C# Tutorial
C# Tutorial
Issued: 11 November, 2017
Ruby Tutorial
Ruby Tutorial
Issued: 16 October, 2017
Swift 4 Fundamentals
Swift 4 Fundamentals
Issued: 08 October, 2017
PHP Tutorial
PHP Tutorial
Issued: 17 September, 2017
Python 3 Tutorial
Python 3 Tutorial
Issued: 04 September, 2017
jQuery Tutorial
jQuery Tutorial
Issued: 26 August, 2017
C++ Tutorial
C++ Tutorial
Issued: 09 August, 2017
JavaScript Tutorial
JavaScript Tutorial
Issued: 07 August, 2017
HTML Fundamentals
HTML Fundamentals
Issued: 03 August, 2017
Java Tutorial
Java Tutorial
Issued: 03 August, 2017
CSS Fundamentals
CSS Fundamentals
Issued: 03 August, 2017
SQL Fundamentals
SQL Fundamentals
Issued: 03 August, 2017

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Popular Question
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Top Answer
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Code Ninja
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Post 10 questions with at least 5 upvotes each
Senior Developer
Senior Developer
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Course Master
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Comment Master
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Code Master
Code Master
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Teacher
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Question Guru
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Quiz Creator
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Create 20 SoloLearn-approved quizzes in the Quiz Factory.
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Creator
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