Zephyr Koo

Level 16

50677 XP

My Courses

8888 XP

7104 XP

6666 XP

5555 XP

970 XP

988 XP

660 XP

319 XP

318 XP

304 XP

182 XP

171 XP

39 XP

0 XP

My Codes

Type Conversion Int32

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

Online Text Fetcher

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

Hello Myself × Console.WriteLine

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

web

💡 Code Playground Js Execution Order

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

Leet Message (LINQ is ❤)

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

💡 Python Scope Demo

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

web

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

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

Mail Merge Challenge 📧

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

StringNum Sorter (LINQ is ❤)

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

web

SL ⚡ Chat (v.0.9.9) × COTD

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

649

Longest Consonants (LINQ is ❤)

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

sqrt(5) Derivation with Fibonacci

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

Hollow Triangle Pattern Challenge (LINQ is ❤)

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

Sentence Capitalizer (LINQ is ❤)

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

Reversal Friends Challenge (2 Digits)

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

Digit Arrangement Challenge 🔢

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

Probability Demo (LawOfLargeNumber)

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

Prime Product Challenge (LINQ is ❤)

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

Kaprekar Constant Challenge

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

java

Trivalent Integer Array with Stream API

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

Repeating Decimal Challenge

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

XY Marker (LINQ is ❤)

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

Hexagon Pattern Challenge (LINQ is ❤)

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

Largest in Subarray List Challenge

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

Subarray Consecutive Sum Challenge

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

Color Hex Triplet ❤💚💙 (this.Challenge)

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

Oracle Cloud String Filter (Interview ❤)

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

Syntax Error @ tt junior

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

web

Animation Debug @ Forge Ice

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

Octagon Pattern Challenge (LINQ is ❤)

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

Josephus Challenge with Visualization

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

Pronic Number Challenge

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

Hollow Alphabet Pyramid Pattern 🔺

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

Right Reverse Alphabet Pattern 🔡

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

Number Pattern 1 22 333 (LINQ is ❤)

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

Number Pattern 122333 (LINQ is ❤)

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

Elevator Packing Challenge (LINQ is ❤)

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

java

💡 Pokemon OOP Demo ⚡

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

java

💡 Switch vs if-else (fall-through)

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

java

💡 String vs Character Array

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

Disarium Number (LINQ is ❤)

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

Compute String Arithmetic Expression 🔢

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

Substring Reversal (this.Challenge)

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

Unique Substring Challenge (LINQ is ❤)

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

Car License Plate Challenge 🚘

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

Partial Reverse Order (LINQ is ❤)

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

String Letter Filter (LINQ is ❤)

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

Numeric Display Challenge 👶🔢

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

Egyptian Fraction Challenge (Unit Fractions Sum)

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

Roller Coaster Number 🎢 (this.Challenge)

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

Palindrome Counter (LINQ is ❤)

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

💡 String Replace Assignment

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

💡 Method Invocation via Reflection

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

Range Maximum (LINQ is ❤)

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

Number Triangle Display Challenge

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

💡 Default Initialization

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

web

💡 Image Text Alignment (🐱 ver.)

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

web

💥RegEx Superman💥 (xkcd)

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

SoloLearn Leaderboard (this.Challenge)

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

Python Regex (Lesson 4)

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

Ripped Number Challenge

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

Password Generator Challenge (LINQ is ❤)

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

Multiplication Table (×10)

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

String Organizer Challenge (LINQ is ❤)

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

Niven Number Challenge (LINQ is ❤)

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

Triangle Multiplier Pattern (Interview ❤)

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

String Cutter (RegEx is ❤)

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

Look and Say Challenge 👀💋

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

Happy Number (^_^)Y

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

web

ol ol ol li 👀💡

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

Armstrong Number Challenge (LINQ is ❤)

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

Cash Register Challenge (freeCodeCamp)

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

Interleave Sort Challenge (LINQ is ❤)

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

Swap First & Last Digit (Challenge)

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

Replace First & Last Digit (Challenge)

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

Find Common Numbers (LINQ is ❤)

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

web

Nikky Web Code v1 (Mixed Content Issue)

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

web

Nikky Web Code v2 (WebView Issue)

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

Chosen One Challenge (LINQ is ❤)

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

Refactorable Number Challenge (LINQ is ❤)

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

LCM Range Challenge (LINQ is ❤)

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

StringNum Conversion (Daily Mini Challenge)

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

Factorial (LINQ is ❤)

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

Longest Path @ Matrix

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

Diagonal Difference (HackerRank)

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

To Wrap or Not To Wrap (this.Challenge)

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

Password Cracking Challenge (LINQ is ❤)

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

Fibonacci-like Multiplication Sequence Generator

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

Superperfect Number (Challenge)

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

XOR Toggle Alphabet Case (LINQ is ❤)

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

String Accumulator (LINQ is ❤)

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

Safe Cracking Problem (2009 AIO)

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

Circular Moving Sum (LINQ is ❤)

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

Number Set (LINQ is ❤)

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

BCD Binary Summit (Daily Dose)

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

Quark Pair (Code of the Day)

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

String Frequency (Daily Challenge)

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

Flyn Number (Daily Challenge)

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

My Certificates

C# Tutorial

Issued: 11 November, 2017

Ruby Tutorial

Issued: 16 October, 2017

Swift 4 Fundamentals

Issued: 08 October, 2017

PHP Tutorial

Issued: 17 September, 2017

Python 3 Tutorial

Issued: 04 September, 2017

jQuery Tutorial

Issued: 26 August, 2017

C++ Tutorial

Issued: 09 August, 2017

JavaScript Tutorial

Issued: 07 August, 2017

HTML Fundamentals

Issued: 03 August, 2017

Java Tutorial

Issued: 03 August, 2017

CSS Fundamentals

Issued: 03 August, 2017

SQL Fundamentals

Issued: 03 August, 2017

Zephyr Koo

My Courses

My Codes

My Certificates

Achievements