Kirk Schafer

Level 16

21872 XP

My Courses

937 XP

417 XP

392 XP

392 XP

364 XP

206 XP

95 XP

37 XP

10 XP

0 XP

0 XP

My Codes

unions : internal float bytes : Q&A

Last Modified: 01/18/2019 02:21:39

Timeout acquire (server)

Last Modified: 01/05/2019 06:20:28

Timeout acquire (client)

Last Modified: 01/05/2019 06:16:38

web

Spin gradient [+ setInterval benchmark]

Last Modified: 01/03/2019 03:40:07

web

BCD (binary-coded-decimal) clock

Last Modified: 01/01/2019 19:47:48

web

A couple binding tricks

Last Modified: 12/26/2018 02:20:32

web

Polling: worse (event-driven: better)

Last Modified: 12/25/2018 01:39:35

web

Variable-velocity slider

Last Modified: 12/25/2018 01:28:41

web

Download files from memory (txt + zip)

Last Modified: 12/21/2018 06:10:59

Immortal object (PEP 0442 : Resurrection)

Last Modified: 12/20/2018 17:27:13

cringy variable passing

Last Modified: 12/17/2018 23:17:52

web

websocket fight

Last Modified: 12/06/2018 23:26:13

"switch" for Python (v2; simpler)

Last Modified: 12/05/2018 01:10:03

web

Explore float64 / double (Internals)

Last Modified: 12/03/2018 16:58:42

web

YouTube Player Javascript API

Last Modified: 11/30/2018 01:48:45

Self-modifying code [new bytecode at runtime]

Last Modified: 11/25/2018 03:24:34

web

Speech synthesis (custom msg, random voice, xkcd)

Last Modified: 11/21/2018 19:01:02

help() without Time Limit Exceeded

Last Modified: 11/05/2018 18:59:39

web

Fibonacci 'JS generator', custom seeds (Lucas #'s), phi convergence

Last Modified: 10/31/2018 15:32:50

web

Fibonacci 'JS iterable'

Last Modified: 10/30/2018 03:47:28

Type timing: fast32, normal and least32

Last Modified: 10/30/2018 03:44:49

Terrible way to say ("HI")

Last Modified: 10/29/2018 02:17:12

web

FAST background threads (no imports)

Last Modified: 10/27/2018 00:39:13

web

Rnd color noise + accelerator datatype [added CPU profiler]

Last Modified: 10/21/2018 18:21:28

Gameloop with Pythonic quit

Last Modified: 10/17/2018 04:32:26

web

Spiral+accuracy: Math, BigNumber, Decimal, NumericJS

Last Modified: 10/13/2018 16:34:39

cpp

Can you fix this? Is 1-line utf16 possible?

Last Modified: 10/05/2018 05:38:16

cpp

Confused by earlier errors, bailing out [Silly preproc tricks]

Last Modified: 10/05/2018 03:03:27

Internal compiler error, line -1 [Silly preproc tricks]

Last Modified: 10/05/2018 03:02:54

web

preventDefault, bubbling + capturing

Last Modified: 09/29/2018 19:26:05

TabError: Inconsistent use of tabs and spaces

Last Modified: 09/28/2018 05:40:11

web

Disable Inspector, View Source, right-click, debug breakpoint

Last Modified: 09/27/2018 22:09:11

[c] Enable unicode (UTF-16) in app [shortened + notes]

Last Modified: 09/27/2018 13:49:19

Server info stuff

Last Modified: 09/26/2018 16:13:03

web

SoloLearn logo imagemap [shows debug]

Last Modified: 09/26/2018 13:55:02

What's wrong...? [Play code]

Last Modified: 09/26/2018 05:33:29

web

Restore after document.write()

Last Modified: 09/22/2018 01:58:23

Sololearn C version

Last Modified: 09/08/2018 18:25:23

cpp

SoloLearn c++ version

Last Modified: 09/08/2018 18:24:33

Optimize? [see Q&A link]

Last Modified: 09/05/2018 02:20:04

How many balls? EmojiInt / __rtruediv override

Last Modified: 09/04/2018 05:46:51

Import custom module

Last Modified: 09/03/2018 04:27:09

working POST demo (urllib)

Last Modified: 08/29/2018 01:31:41

Socket connection time query

Last Modified: 08/21/2018 17:33:35

web

CodePen -> SoloLearn [for Q&A 1459888]

Last Modified: 08/18/2018 04:51:48

cpp

[c++] Enable unicode (UTF-16) in app

Last Modified: 08/15/2018 15:11:33

web

Rolling Shutter Effect + extras

Last Modified: 08/11/2018 03:18:16

web

Ball overlay split animation [worker]

Last Modified: 07/26/2018 17:00:00

php

PHP wrapper / can-take-input? infos

Last Modified: 07/24/2018 00:07:04

ipaddress module (v4, v6)

Last Modified: 07/19/2018 06:04:29

List SoloLearn modules (updated)

Last Modified: 07/18/2018 16:22:47

108

java

Why use interfaces?

Last Modified: 07/12/2018 05:15:32

[Python] Enable unicode in app (UTF-16: colors, shapes, special characters)

Last Modified: 07/02/2018 16:36:00

191

Decorate an internal function (make "print" self-time, self-repeat)

Last Modified: 07/02/2018 03:32:44

web

Strobe light (v1.5 : timer overhaul)

Last Modified: 06/30/2018 05:53:52

web

File exists (HEAD) request with JS

Last Modified: 06/30/2018 02:51:43

[Ruby] Enable unicode (UTF-16) in app

Last Modified: 06/28/2018 20:58:30

[Kotlin] Enable unicode (UTF-16) in app

Last Modified: 06/28/2018 20:58:28

java

[Java] Enable unicode (UTF-16) in app

Last Modified: 06/28/2018 20:58:27

[C#] Enable unicode (UTF-16) in app

Last Modified: 06/28/2018 20:58:26

web

Runaway regex: catastrophic backtracking (safe threads) [refactor]

Last Modified: 06/28/2018 02:05:03

web

Disable/null console (short/silent + longer/demo versions)

Last Modified: 06/27/2018 21:02:04

[challenge] print -> puts/printf (ctypes) override

Last Modified: 06/27/2018 15:47:08

web

Orientation API [lagfix] (portrait + landscape + lock, resizes + soft keyboard)

Last Modified: 06/27/2018 05:55:00

web

[ES6] Sensors live streams [ acceleration gravity rotation ]

Last Modified: 06/24/2018 21:04:29

web

Sensors live streams [ acceleration gravity rotation ]

Last Modified: 06/24/2018 21:03:24

php

php server: create image / list extensions [bugfix]

Last Modified: 06/24/2018 02:26:58

AST and a little mischief [Abstract Syntax Tree]

Last Modified: 06/22/2018 23:59:04

web

JS: Python-like assignment + swap (a,b = b,a)

Last Modified: 06/22/2018 05:50:06

web

Erasable radio buttons

Last Modified: 06/16/2018 05:19:09

web

Mix ES5 / ES6 in same file

Last Modified: 06/05/2018 01:35:08

web

Truly random (not a PRNG) [ES5/ES6 fix]

Last Modified: 06/04/2018 23:09:35

Generic Internet file retriever (0.3 beta)

Last Modified: 05/30/2018 06:21:09

web

(US ONLY) Monopoly rare/semi-rare fast code checker [expires 2018-05-29]

Last Modified: 05/29/2018 01:25:01

web

animated yin-yang - 1 div / no js

Last Modified: 05/25/2018 03:47:32

cpp

DOS special device file (illegal replacement target)

Last Modified: 05/24/2018 16:26:32

web

Dump image EXIF metadata (gps, camera, aperature, flash, shutter, resolution, ...)

Last Modified: 05/24/2018 05:22:50

Unicode FizzBuzz [Python]

Last Modified: 05/23/2018 05:34:20

cpp

Custom code before/after main() [constructor / destructor]

Last Modified: 05/22/2018 22:43:52

web

var scope matters (access times: global vs local vs loop)

Last Modified: 05/20/2018 04:29:10

web

regl triangle (fix: old webviews) [WebGL]

Last Modified: 05/03/2018 06:10:11

web

Dark Knight/Batpod (Shepard Tone Illusion) [Audio] (bug check)

Last Modified: 05/01/2018 19:16:19

SoloLearn console type (I/O seen by codes)

Last Modified: 04/30/2018 05:11:03

Time it takes to query the time (clock, time, perf_counter + several host statistics)

Last Modified: 04/25/2018 03:42:20

bytecode + disassembly info [Python]

Last Modified: 04/23/2018 19:40:56

CPU-ID : let's query CPU info [bugfix: model/family]

Last Modified: 04/13/2018 01:21:28

cpp

SoloLearn compile number (in-memory + argv)

Last Modified: 04/11/2018 21:33:37

hexdump -C (small, wide, blocks modes)

Last Modified: 04/07/2018 17:26:16

prints forever (no loop)

Last Modified: 04/04/2018 17:27:58

goto by fatal signal (FPE 1000x for challenge)

Last Modified: 04/04/2018 04:36:10

HTTP / CORS check (HEAD/OPTIONS/GET) +https, virtualhost

Last Modified: 04/02/2018 01:16:35

Random() coprimes == pi ?! + video

Last Modified: 03/30/2018 05:18:24

Numpy vs Python speed (works; +better)

Last Modified: 03/30/2018 03:50:39

cpp

booleans set to 1 on ++? (below c++17 only)

Last Modified: 03/30/2018 02:33:38

cpp

Newlines faster than << endl

Last Modified: 03/30/2018 00:29:25

java

kernel timer granularity (15.6 ms)

Last Modified: 03/29/2018 23:30:54

web

Code/File difference utility (+URL double-barrel autoload)

Last Modified: 03/29/2018 02:46:24

Various sysinfos

Last Modified: 03/27/2018 21:25:05

web

Cipher Analyzer (Vigenère/Caesar/Shift/Vigenere)

Last Modified: 03/16/2018 05:31:27

web

Wooo! [audio demo] (bugfixes)

Last Modified: 03/10/2018 02:16:59

Console 3-day weather (Extraction: 4 columns to 1 long vertical)

Last Modified: 01/22/2018 22:58:49

Decimal to binary fraction (base 10 -> base 2)

Last Modified: 01/18/2018 00:41:11

web

Advanced Graphing Calculator (Desmos API)

Last Modified: 01/09/2018 23:41:06

web

Archimedian spiral length by steps

Last Modified: 01/03/2018 06:45:46

web

Sortof a spirograph

Last Modified: 01/03/2018 06:36:10

web

Self-modifying JS replacement

Last Modified: 12/31/2017 02:02:57

web

Canvas: resize "zoom" (CSS vs HTML dimensions)

Last Modified: 12/28/2017 02:06:54

scanf works...but remember the NULL byte

Last Modified: 12/08/2017 14:55:52

web

The Sun...now-ish [all satellite sensors]

Last Modified: 12/02/2017 04:43:32

java

char matrix permutations (optional repeat)

Last Modified: 11/30/2017 19:10:54

web

Self code index

Last Modified: 11/28/2017 03:26:25

UUencode / UUdecode (newsgroups, email)

Last Modified: 11/27/2017 15:56:11

readline vs readlines (Q&A)

Last Modified: 11/27/2017 15:37:31

web

StarWars Imperial March [audio ~ haptic sync]

Last Modified: 11/24/2017 01:17:27

web

Check AnimationFrame rate bug

Last Modified: 11/22/2017 21:08:27

web

Image-event-driven photo scan, calendar picker

Last Modified: 11/17/2017 14:26:10

web

Modulo bias in PRNG [PoC; cleaning up]

Last Modified: 11/13/2017 04:45:01

Egyptian multiply trick : How computers do it

Last Modified: 11/09/2017 04:25:30

New matrix multiply operator @ vs .dot()

Last Modified: 11/06/2017 23:28:33

web

NaN 'gotcha'

Last Modified: 11/06/2017 15:42:03

web

'Let' vs 'var' : fix for transitional (JS/ES6)

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

cpp

Pythonic string repeat (operator*)

Last Modified: 11/03/2017 13:46:07

Divide numbers by looping

Last Modified: 10/31/2017 02:26:42

web

Secret challenge answer validator [standalone]

Last Modified: 10/27/2017 05:18:43

web

Secure passwords + Secret challenge answer validator

Last Modified: 10/26/2017 20:43:02

Euclidian distance via collections:Counter

Last Modified: 10/24/2017 03:04:28

A Python "program" program

Last Modified: 10/22/2017 00:14:49

Event tracing : call(), return, line, etc.

Last Modified: 10/14/2017 04:20:10

Garbage collector infos

Last Modified: 10/13/2017 05:44:08

web

Zap 0's "no test" trick (Array.from() fix) [challenge]

Last Modified: 10/12/2017 17:57:42

cpp

". " vs '. ' (integer byte order)

Last Modified: 10/12/2017 04:24:58

IPv4: validate by behaviors, not plain values

Last Modified: 10/05/2017 23:45:59

php

Working POST demo

Last Modified: 10/05/2017 20:02:48

'Maze run' (saves state!) [v0.1 alpha]

Last Modified: 10/05/2017 04:59:03

web

Scatterplot [WebGL]

Last Modified: 10/04/2017 20:13:02

Image detection (library demo only)

Last Modified: 10/03/2017 00:38:17

web

Background thread messaging

Last Modified: 09/28/2017 06:58:32

web

Local storage - works [IndexedDB PoC]

Last Modified: 09/23/2017 12:25:29

web

Image loader object [sdcard to canvas]

Last Modified: 09/20/2017 05:56:32

web

class inheritence: svg path injection

Last Modified: 09/20/2017 03:47:01

cpp

Single precision : digit 8 microscope

Last Modified: 09/19/2017 02:38:23

cpp

Hello World [obscure]

Last Modified: 09/18/2017 23:06:16

£ symbol encoding

Last Modified: 09/17/2017 19:19:21

web

CSS custom props: $x vs. var(--x)

Last Modified: 09/17/2017 01:59:22

web

Browser/DOM inspector

Last Modified: 09/15/2017 19:45:47

web

vibrate() now requires user intervention

Last Modified: 09/15/2017 18:44:06

cpp

Add without + (use printf wisely)

Last Modified: 09/10/2017 18:48:45

web

iframe postMessage + error cancel (works)

Last Modified: 09/07/2017 08:33:32

Disallowed operators (6 alt ways) [challenge]

Last Modified: 08/29/2017 04:06:09

Single-hop flights, verbose [challenge]

Last Modified: 08/26/2017 20:11:40

Single-hop flights, 1-liner [challenge]

Last Modified: 08/26/2017 20:11:35

Identify server (1 liners)

Last Modified: 08/17/2017 19:12:25

web

Word cloud for RFC-1945:HTTP

Last Modified: 08/16/2017 23:53:36

this...is a joke

Last Modified: 08/16/2017 00:17:53

cpp

Quarks: pair/triple/quads : parallel bitcount + assembly msb [challenge]

Last Modified: 08/15/2017 02:46:10

cpp

Quarks [algorithm source] : Parallel bitcount + assembly MSB [challenge]

Last Modified: 08/15/2017 01:35:01

cpp

Why is this printing... (detail)

Last Modified: 08/10/2017 21:08:41

Native text color: no ANSI required

Last Modified: 08/09/2017 16:16:45

Matrix ring rotate [HackerRank]

Last Modified: 08/06/2017 17:36:35

web

Image embedded in HTML (no download)

Last Modified: 08/06/2017 16:27:13

cpp

Unusual termination : thrown exception [Q&A]

Last Modified: 08/06/2017 04:49:39

cpp

strfuncs 1-liner challenge [strcpy, strcmp, strcat -> memcpy, memcmp, ternary]

Last Modified: 08/05/2017 20:36:02

~Rotate challenge [4-line "utility" demo]

Last Modified: 08/04/2017 12:35:18

cpp

Files gotcha (EOF flag vs ASCII 26)

Last Modified: 08/04/2017 05:18:32

(is vs ==) using memory address

Last Modified: 08/03/2017 06:11:46

Largest file/edge crash tests (seek, close)

Last Modified: 08/03/2017 05:17:39

web

Which <li> clicked (from <ol>)

Last Modified: 08/03/2017 04:38:27

web

Waveforms, nodes, analyzer [audio demo]

Last Modified: 07/29/2017 00:12:30

web

Battery info

Last Modified: 07/27/2017 00:36:54

web

phpinfo (ok; no TLE or Playground bug)

Last Modified: 07/26/2017 05:04:18

cpp

anoneon-Q&A related

Last Modified: 07/26/2017 02:32:50

web

ident clicked button - this & custom data values - 4Q

Last Modified: 07/24/2017 14:46:52

php

phpinfo piece extractor

Last Modified: 07/24/2017 04:55:35

Predict Random (Microsoft .NET)

Last Modified: 07/22/2017 19:15:23

Dump random memory

Last Modified: 07/21/2017 01:30:39

web

Function/Boolean statics (no vars)

Last Modified: 07/21/2017 01:02:30

web

An ideal computing task (data entry -> added value)

Last Modified: 07/19/2017 20:09:05

Function overloading

Last Modified: 07/19/2017 04:38:05

Is workstation locked?

Last Modified: 07/19/2017 04:31:09

cpp

Text graph for sin()

Last Modified: 07/18/2017 00:20:06

cpp

Text graph for circle (calculated)

Last Modified: 07/18/2017 00:19:58

web

Morse [audio demo]

Last Modified: 07/16/2017 05:22:06

cpp

c++ (vs Python) mod behavior with negs

Last Modified: 07/15/2017 21:43:08

Python (vs c++) mod behavior with negs

Last Modified: 07/15/2017 21:40:52

scan for "remove" (4Q)

Last Modified: 07/13/2017 21:26:08

Open sockets, pids, ports, state

Last Modified: 07/12/2017 04:35:49

Fibonacci -> phi (golden ratio)

Last Modified: 07/10/2017 22:03:32

Happy birthday fly-in

Last Modified: 07/10/2017 22:01:56

web

Something different [jsf*]

Last Modified: 07/10/2017 06:00:55

cpp

[challenge] getMin O(1) : ± stack [update]

Last Modified: 07/09/2017 14:21:11

web

Simple inheritence: 2d->3d coords

Last Modified: 07/08/2017 20:25:42

web

Colorful Area Rug (2D rotation)

Last Modified: 07/08/2017 03:54:45

web

CaptureTheFlag 3 [HackerRank]

Last Modified: 07/06/2017 05:57:13

web

CaptureTheFlag 2 [HackerRank]

Last Modified: 07/06/2017 05:57:08

web

rotates?

Last Modified: 07/06/2017 05:56:19

web

Countdown - no js counter

Last Modified: 07/06/2017 05:55:47

web

peerJS companion iframe

Last Modified: 07/06/2017 05:16:15

web

fn.length, finally weirdness

Last Modified: 07/06/2017 04:03:52

Print up to 512KB; no time limit exceeded

Last Modified: 07/06/2017 00:55:00

java

thread sleep time precision

Last Modified: 07/05/2017 23:40:09

web

Mutation-Fired 'Firefly' Text

Last Modified: 07/05/2017 23:08:21

cpp

funny/odd

Last Modified: 07/05/2017 14:44:51

web

hr breaks align nesting

Last Modified: 07/04/2017 03:48:07

web

debugging

Last Modified: 07/04/2017 03:40:11

web

mathbox 2

Last Modified: 07/04/2017 02:50:57

cpp

int_literal[ptr] (Silly c++ Tricks)

Last Modified: 07/03/2017 16:56:52

web

Trendlines: random + averages

Last Modified: 07/03/2017 02:08:34

recursive "in", neat short-circuit (4Q)

Last Modified: 07/02/2017 16:13:10

cpp

[challenge] getMin O(1) : + stack only

Last Modified: 07/01/2017 00:03:32

cpp

[challenge] getMin O(1) : ± stack

Last Modified: 07/01/2017 00:03:21

web

Hello Ring:no iframe + source [VPython]

Last Modified: 06/29/2017 19:01:50

web

[Python Web] Interactive Input

Last Modified: 06/28/2017 16:00:58

web

Your LAN IP address is...

Last Modified: 06/28/2017 05:52:53

web

Quick event dump (swipe) [bugfix]

Last Modified: 06/27/2017 00:12:58

cpp

c++ assembly (add + multiply) [asm]

Last Modified: 06/26/2017 16:57:30

web

Internet Relay Chat (irc)

Last Modified: 06/25/2017 21:57:44

Comms: stuffing keyboard

Last Modified: 06/24/2017 23:40:16

web

Speed Reader

Last Modified: 06/18/2017 14:51:15

web

Async csv download (promises; manual start)

Last Modified: 06/16/2017 03:25:03

cpp

Using gets() + stack canary [fixed a crash]

Last Modified: 06/15/2017 23:08:46

Read CSV, load database, query (CA real estate)

Last Modified: 06/15/2017 13:34:20

java

CharGen PRNG stats [oddeofreq 4QA]

Last Modified: 06/14/2017 22:36:13

Operator + str override (a couple Classes)

Last Modified: 06/14/2017 04:14:12

ruby object id's (references)

Last Modified: 06/13/2017 04:57:02

web

SVG test suite (275 tests)

Last Modified: 06/11/2017 16:16:26

Speech recognition demo (PocketSphinx)

Last Modified: 06/10/2017 03:32:40

web

Tupper's Self-Referential Formula

Last Modified: 06/09/2017 16:07:49

web

alert() intercept / override

Last Modified: 06/09/2017 14:22:22

Read audio file + stats (live demo: AIFF)

Last Modified: 06/09/2017 05:41:24

Launch Android Intent (usage statistics)

Last Modified: 06/08/2017 19:20:15

web

Hello Ring:iframe + IDE [3D / VPython]

Last Modified: 06/07/2017 03:05:12

web

[Python Web] Turtle

Last Modified: 06/07/2017 03:04:56

web

4q-"What's the difference?" [form vars]

Last Modified: 06/06/2017 14:40:45

web

Counting w/CSS (+ pseudos + attr extraction)

Last Modified: 06/03/2017 17:47:02

Interactive input source

Last Modified: 06/02/2017 22:44:47

Everything's an object (+Java compare)

Last Modified: 06/02/2017 17:14:34

web

[Python Web] ANSI color XOR Cycle Map

Last Modified: 06/02/2017 06:27:01

php

Calendar; first day calc + localization

Last Modified: 06/02/2017 05:32:25

XOR flip/fold cycle map (condensed)

Last Modified: 06/02/2017 03:08:38

cpp

Uninitialized array after new()

Last Modified: 06/01/2017 22:26:41

cpp

Elements used, alt. magic number (fill_n or memset)

Last Modified: 06/01/2017 21:19:03

Top 9-word in RFC1945 (challenge)

Last Modified: 06/01/2017 15:26:28

web

GL Solar System (ported Mathbox demo)

Last Modified: 06/01/2017 15:15:33

Optimize side-channel (challenge)

Last Modified: 06/01/2017 13:32:16

web

Shadow DOM (Web components)

Last Modified: 06/01/2017 00:03:29

web

Swipe up/down to... (reload not for app)

Last Modified: 05/31/2017 23:41:32

web

4Q: fn(y){y+1}(++a)+a+a

Last Modified: 05/29/2017 04:46:26

web

Template literals [ES6 demo]

Last Modified: 05/29/2017 02:43:50

web

CubeRoot (by Long Division)

Last Modified: 05/28/2017 06:01:21

web

Plasma (older webviews fix) [OpenGL]

Last Modified: 05/24/2017 01:24:35

web

Benchmark your mobile

Last Modified: 05/23/2017 06:00:56

web

(US ONLY) Monopoly rare/semi-rare fast code checker

Last Modified: 05/22/2017 01:59:17

web

Plasma (for updated WebViews) [OpenGL]

Last Modified: 05/20/2017 17:49:22

Adversarial password validator

Last Modified: 05/19/2017 01:03:01

IPv4 extended validator

Last Modified: 05/18/2017 04:04:24

web

Filling Ⓕⓞⓝⓣ background

Last Modified: 05/17/2017 23:14:59

"while True" async breakout (throw up a timer)

Last Modified: 05/17/2017 15:31:29

FTP demo - e.g., old games (idSoftware)

Last Modified: 05/17/2017 06:10:19

isAlt challenge: Binary Cheater

Last Modified: 05/15/2017 23:17:42

isAlt challenge: Validator Flipper

Last Modified: 05/15/2017 20:06:07

web

4Q: Why is output 'two'?

Last Modified: 05/15/2017 15:46:21

web

3D function view [WebGL]

Last Modified: 05/15/2017 05:48:17

web

Tap ellipse/force visualizer

Last Modified: 05/11/2017 03:11:27

web

SnakeCase challenge (RegEx)

Last Modified: 05/08/2017 21:20:09

web

HexdumpCanvas

Last Modified: 05/05/2017 14:53:01

web

HexdumpPRE

Last Modified: 05/05/2017 03:26:19

web

hexdumpHTML

Last Modified: 05/05/2017 03:04:17

web

upside down text

Last Modified: 05/05/2017 03:02:30

web

Plug-n-Play Popup Error Console [demo]

Last Modified: 05/04/2017 14:46:05

web

Plug-n-Play Popup Error Console [blank template]

Last Modified: 05/04/2017 14:45:45

web

Javascript ErrConsole NEW/Easy

Last Modified: 05/03/2017 20:50:14

cpp

decimal fraction -> any base (2 to 255)

Last Modified: 05/03/2017 00:14:44

cpp

100! precision-loss weak detector

Last Modified: 05/02/2017 23:57:51

cpp

0.21745... to binary decimal and back

Last Modified: 05/02/2017 21:49:35

cpp

100! doesn't fit in a double

Last Modified: 05/02/2017 15:03:07

Kuba did it better (for Ahri Fox)

Last Modified: 05/01/2017 03:30:52

Where's the var? (Silly Python Tricks)

Last Modified: 04/27/2017 17:35:15

Buffer swap split (Silly Python Tricks)

Last Modified: 04/27/2017 01:01:29

Printless print (Silly Python Tricks)

Last Modified: 04/27/2017 01:01:19

Network interface MAC address (continues: starmap, zip)

Last Modified: 04/26/2017 23:56:27

Iterator trick (starmap + zip clustering)

Last Modified: 04/26/2017 23:56:27

Five ways to sum + performance timers

Last Modified: 04/26/2017 05:15:23

4Q: Nested List Challenge (Lium Goon)

Last Modified: 04/26/2017 00:47:57

web

Peer to peer: works, with notes (PoC)

Last Modified: 04/24/2017 17:17:45

web

crypto

Last Modified: 04/24/2017 14:49:03

web

emodjinn

Last Modified: 04/22/2017 00:29:32

web

Date -> day of week (KeyValue method)

Last Modified: 04/20/2017 23:55:38

Double-ended queues (deques/stacks)

Last Modified: 04/20/2017 23:44:45

cpp

packed struct

Last Modified: 04/19/2017 23:33:30

web

crashy

Last Modified: 04/17/2017 18:01:47

web

4J.G. - why negative

Last Modified: 04/16/2017 20:09:34

persistent value for jalisa abdulgani dalvi

Last Modified: 04/14/2017 19:10:58

web

calendar

Last Modified: 04/13/2017 19:47:00

web

css fiddling

Last Modified: 04/13/2017 17:23:15

web

4?: Animation crashes SLPG

Last Modified: 04/12/2017 17:15:27

java

Sleep precision

Last Modified: 04/11/2017 03:43:44

Spin

Last Modified: 04/10/2017 20:51:39

cpp

Float/Double precision demo

Last Modified: 04/08/2017 02:56:53

mazegen-charfiddle

Last Modified: 04/07/2017 19:03:43

web

Small/quick generator example

Last Modified: 04/07/2017 15:22:54

web

LoopPerformanceTests (a weird check)

Last Modified: 04/06/2017 22:40:22

cpp

floats/doubles/ints

Last Modified: 04/04/2017 21:08:36

web

fetch - replaces XHR/XMLHttpRequest

Last Modified: 04/04/2017 00:02:17

web

CSS "Adjacent Sibling" selector

Last Modified: 03/31/2017 21:31:20

cpp

ASCII lines

Last Modified: 03/31/2017 16:11:18

web

Javascript timer resolution

Last Modified: 03/28/2017 03:53:14

web

HBFeedback

Last Modified: 03/26/2017 01:15:29

Hello <-(?)-> (in-memory gunzip)

Last Modified: 03/25/2017 23:34:40

php

Work/output: Thinking "server vs. client"

Last Modified: 03/25/2017 17:07:52

Memory available to Python (Win32 API)

Last Modified: 03/23/2017 19:39:49

web

Blurry vs. sharp line (canvas)

Last Modified: 03/22/2017 21:12:33

gzip-noiostring

Last Modified: 03/22/2017 03:52:55

web

Imported Open Font + Quote

Last Modified: 03/21/2017 16:54:00

'Maze run' generator (ported)

Last Modified: 03/16/2017 03:36:22

web

Character dump: HTML-entity-type

Last Modified: 03/11/2017 04:28:03

cpp

Hardware byte order (integers)

Last Modified: 03/10/2017 23:17:38

cpp

neat-why doesn't it add up correctly?

Last Modified: 03/10/2017 23:07:16

cpp

Mysterious printf [SOLVED]

Last Modified: 03/10/2017 15:36:23

Py: Persistent data SoloLearn (sheets db)

Last Modified: 03/09/2017 11:52:05

Py: Persistent data HOME version (simpler!)

Last Modified: 03/09/2017 11:52:02

pers-wk

Last Modified: 03/08/2017 21:30:42

wth2-2?

Last Modified: 03/08/2017 19:22:20

cpp

nobug

Last Modified: 03/08/2017 17:33:15

wth?

Last Modified: 03/08/2017 03:29:01

reverse

Last Modified: 03/06/2017 21:32:02

web

unicode cookie

Last Modified: 03/06/2017 20:29:07

cpp

WeirdCode: Duff'sDevice

Last Modified: 03/06/2017 17:47:45

Python reference counts

Last Modified: 03/06/2017 17:12:23

Cute True==1

Last Modified: 03/05/2017 00:26:33

web

SFOpenData Demo-broken

Last Modified: 03/04/2017 01:31:02

[Time Trial] for Kuba Siekierzyński's Magic square verificators

Last Modified: 03/02/2017 22:37:36

Python + sqlite3 (works here)

Last Modified: 03/02/2017 17:11:02

Multiprocessing (4 threads) in 6 codelines

Last Modified: 02/28/2017 21:11:26

straight *7 vs shift

Last Modified: 02/28/2017 21:07:58

ahri_timer

Last Modified: 02/28/2017 15:38:20

python_server_memory

Last Modified: 02/22/2017 01:30:20

web

Practice SQL (browser or app)

Last Modified: 02/20/2017 21:52:25

cpp

tricky

Last Modified: 02/20/2017 21:50:51

eval-custom

Last Modified: 02/18/2017 22:20:53

java

nudu

Last Modified: 02/18/2017 21:28:55

web

Last Modified: 02/09/2017 23:58:13

web

setinterval test

Last Modified: 02/09/2017 19:15:49

web

vididd

Last Modified: 02/08/2017 02:41:55

cpp

try2

Last Modified: 02/08/2017 02:22:41

md5seed_fiddling

Last Modified: 02/08/2017 00:43:15

cplx0

Last Modified: 02/07/2017 18:12:20

Goodstein sequence

Last Modified: 02/07/2017 13:02:06

cpp

print5K

Last Modified: 02/02/2017 03:02:29

web

JS Error Console (OLD version snippet)

Last Modified: 01/31/2017 20:16:40

web

JS Error Console

Last Modified: 01/31/2017 05:21:03

cpp

Overflow

Last Modified: 01/29/2017 15:51:44

web

JS Error Console (1 line)

Last Modified: 01/28/2017 01:41:14

Reverse : recursive ternary abuse

Last Modified: 01/28/2017 01:10:43

[shorter fork] Print your name in Symbols v1.6:fork [Bogdan Bogdanov]

Last Modified: 01/25/2017 17:01:52

Converter for Bogdon Bogdanov's "Print your name in Symbols v1.6"

Last Modified: 01/25/2017 17:01:38

cpp

malloc() magnitude test

Last Modified: 01/22/2017 13:25:00

web

Javascript selfie (NO PERMS-Sample ONLY)

Last Modified: 01/13/2017 19:43:22

web

HTML5 (555 tests) inlined

Last Modified: 01/13/2017 14:47:56

web

HTML5 File stuff checks

Last Modified: 01/13/2017 13:26:29

web

HTML5 File API check

Last Modified: 01/13/2017 13:05:56

web

bounce_line - beta 1.3

Last Modified: 01/13/2017 01:18:13

web

HTML5 local storage check

Last Modified: 01/12/2017 23:04:53

web

SQL in-browser

Last Modified: 01/11/2017 00:03:53

web

voxel test [WebGL]

Last Modified: 01/10/2017 13:14:53

web

quiz

Last Modified: 01/09/2017 22:45:59

web

mathbox - label

Last Modified: 01/09/2017 19:59:03

web

mathbox water

Last Modified: 01/09/2017 16:29:19

web

mathbox - solar system

Last Modified: 01/09/2017 01:51:53

web

mathbox colorcube

Last Modified: 01/09/2017 01:46:01

web

mathbox 1

Last Modified: 01/09/2017 01:21:52

web

bounce_line - beta 1.1

Last Modified: 01/08/2017 01:50:59

web

cssdeck forum answer

Last Modified: 12/05/2016 12:56:30

web

Browse/Search SoloLearn website inside the app

Last Modified: 12/02/2016 01:47:58

Dif between global/local

Last Modified: 12/01/2016 21:22:19

My Certificates

SQL

Issued: 07 March, 2017

JavaScript

Issued: 05 December, 2016

Python 3

Issued: 30 September, 2016

Achievements

Comment Master

Leave 5 comments in a lesson/quiz with at least 5 upvotes each

Gold Moderator

Awarded to select Moderators who show expertise in moderation and are ready for the next level of responsibilities.

Senior Developer

Get 50 upvotes on your code

Moderator

Awarded to members who have been selected by our moderation team to help moderate community content.

Respected Citizen

Reply to a comment in a lesson/quiz and get 5 upvotes