Dwitter - javascript demos in 140 characters

function u(t) {

c.width=1920 // clear the canvas
for(i=0;i<9;i++)
x.fillRect(400+i*100+S(t)*300,400,50,200) // draw 50x200 rects

} // 122/140

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    u(t) is called 60 times per second.
    t: Elapsed time in seconds.
    S: Shorthand for Math.sin.
    C: Shorthand for Math.cos.
    T: Shorthand for Math.tan.
    R: Function that generates rgba-strings, usage ex.: R(255, 255, 255, 0.5)
    c: A 1920x1080 canvas.
    x: A 2D context for that canvas.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Food

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KilledByAPixel

remix of d/35981 by u/KilledByAPixel

function u(t) {

for(c.width|=A=128;A;T+=.1)for(X=A/(e=64/T)-T,i=(X+t^T)%5>0||(--A,T=1,20);i--;x.fillText(code[(X+t)*30&T+i],A*15,560-(i-9)*e))x.font=e+'px"'

Jul 26 2026 9:30 PM UTC

}// 140/140

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Writing on the Walls 🧱

u/PotatoImaginator

Nice :O

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KilledByAPixel

remix of d/35970 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`󩭯󬬨󮌮󩭩󫍬󤭥󨽴󚌰󛌰󛍷󟜲󩜳󛍷󚜬󠜽󞜹󞽁󞽔󚼽󛬱󚝦󫽲󚍘󟝁󛼨󩜽󞜹󛽔󚜪󜬭󥌬󪜽󚍘󚼱󙭔󚽴󚜥󝼼󜼦󥌼󞜹󯍼󚍸󛭦󪝬󫍓󭍹󫍥󟝠󪍳󫌨󜌠󞜹󙜤󮼭󛝁󙬦󩜪󜭽󙝠󛍔󟜰󛌲󜌩󞼭󛝩󞽸󛭦󪝬󫍔󩝸󭌨󚍘󚭷󧭩󚽴󚬳󜌩󚬪󜬥󜼬󠜪󜜹󛌵󝌰󛜨󪜭󞜩󚭥󚜩󮌮󩭯󫭴󟝥󚼧󬍸󘬧`.replace(/u../g,'')))

Jul 26 2026 9:03 PM UTC

}// 140/140

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Terminate 🦾

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KilledByAPixel

remix of d/35959 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`󮌮󩭩󫍬󤭥󨽴󚌰󛌰󛌲󩜳󛌲󩜳󚜊󩭯󬬨󠜽󞜹󞽁󞽔󚼽󛬱󚝦󫽲󚍱󟜨󚍘󟝴󚽁󛼨󩜽󝜵󛽔󚜭󥌩󧭔󚜥󜼬󪜽󬝼󯌨󮌮󩭩󫍬󤽴󮝬󩜽󤬨󥌽󜜬󛜭󠜦󙬹󚭥󚜬󜜸󚜻󘝱󙬦󪜭󛜻󮌮󩭩󫍬󥍥󮍴󚍓󚌨󪜫󚍘󚬳󜍼󜌩󚬪󜼫󭌪󞝼󜌩󚬪󜼩󚼱󯌰󛍁󚬱󞜬󝜴󜌭󚍩󛜹󚜪󩜩󚝸󛭦󫽮󭌽󩜫󙽰󮌢󙼻`.replace(/u../g,'')))

Jul 25 2026 3:51 PM UTC

}// 140/140

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Welcome to the Matrix 🕶️

u/UEZ

#matrix Wait, I can see Neo and Trinity fighting Agent Smith...

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imrulo.eth@proton.me

function u(t) {

for(c.width|=i=2e3;i--;x.fillRect(960+C(--m)*r,i/2.2+S(m)*r/2,14,9))r=30+C(i/700)**2*120,x.fillStyle=R(0,(a=S(m=i+t)**8*200+50)*.85,a,i/99)

Jul 27 2026 4:58 AM UTC

}// 139/140

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Time

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luta

function u(t) {

eval(unescape(escape`󩬽󜬼󟌹󚽴󛼱󜬥󞌻󩭯󬬨󪜽󜭥󜼻󪜭󟜲󞽸󛭦󪝬󫍒󩝣󭌨󪜬󪬬󜬬󜬩󚝻󪬽󭌥󜜲󚬱󜬰󞽙󟜨󪬭󝜴󜌩󛽦󛜴󛼹󞽘󟜨󪜭󞜶󜌩󛽦󛜶󛼹󞽦󫽲󚍡󟝢󟝫󟜰󞽫󚼫󟌳󝬦󙭡󟌴󞼩󨼽󨜪󨜭󨬪󨬬󨬽󦜫󜬪󨜪󨬬󨜽󨼫󦌻󮌮󩭩󫍬󤽴󮝬󩜽󨍨󬽬󚌤󮼹󚭫󯜠󞜹󙜤󮽫󙜳󝭽󚝠󯜻`.replace(/u../g,'')))

Jul 26 2026 10:39 PM UTC

}// 134/140

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#mandelbrot variation

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PotatoImaginator

function u(t) {

c.width^=0
for(i=12;i--;)x.fillRect(u=200*(i-t%1)-340,u/2+285,400,101)
x.fillStyle='red'
x.arc(960,540-250*S(Math.PI*(t%1)),75,0,7)
x.fill()

Jul 27 2026 11:45 AM UTC

}// 140/140

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Bouncing #ball on #stairs

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rodrigo.siqueira

remix of d/35946 by u/rodrigo.siqueira

function u(t) {

eval(unescape(escape`𪑦𚀡𭀩𮀮𭁲𨑮𬱬𨑴𩐨𞐶𜀬𝐴𜀩𒡷𪑴𪀨𮀩𩡯𬠨𪐽𝀰𞱩𛐭𞰩𩡯𬠨𪠽𜐲𞱪𛐭𞰩𩡩𫁬𤱴𮑬𩐽𨁨𬱬𚀤𮱩𯐬𞀵𙐬𙁻𝰵𚡃𚁩𚱴𚐪𚠸𯐥𨀬𬱣𨑬𩐨𜐬𜐯𜰩𛁢𩑧𪑮𤁡𭁨𚀩𛀊𨑲𨰨𞐰𜀪𤰨𪠫𭀩𛀰𛁩𚡩𛀰𛀷𚐬𩡩𫁬𚀩𛁳𨱡𫁥𚀱𛀳𚐬𬡯𭁡𭁥𚀮𝐲𜰶𚐻`.replace(/u../g,'')))

Jul 27 2026 10:58 AM UTC

}// 137/140

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PotatoImaginator

function u(t) {

eval(unescape(escape`挮睩摴桞㴰㭸⹡牣⠹㘰ⱶ㴵㐰ⱶⰰⰷ⤻砮晩汬⠩㭦潲⡩㴲㭩ⴭ㭸⹦楬氨⤩砮扥杩湐慴栨砮晩汬却祬攽椿❢汵攧㨧牥搧⤬吽琫椪ㄮ㔷ⱋ㵃⡔⤪⨲ⱸ⹡牣⠹㘰⵶⩓⠲⩔⤪䬬瘭瘪䌨㈪吩⩋ⱶ⨨ㄭ䬩ⰰⰷ⤻`.replace(/u(..)/g,"$1%")))

Jul 25 2026 4:09 AM UTC

}// 134/140

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#circle Balance

u/PotatoImaginator

code is:
u/PotatoImaginator

c.width^=0; x.arc(960,540,540,0,7);x.fillStyle='';x.fill() x.beginPath();x.fillStyle='red'; x.arc(960-540*S(2*t)*(C(t)**2),540-540*C(2*t)*(C(t)**2),(540*(S(t)**2)),0,7);x.fill(); x.beginPath();x.fillStyle='blue'; x.arc(960+540*S(2*t)*(S(t)**2),540+540*C(2*t)*(S(t)**2),(540*(C(t)**2)),0,7);x.fill();
u/PotatoImaginator

c.width^=0;x.arc(960,v=540,v,0,7);x.fill();for(i=2;i--;x.fill())x.beginPath(x.fillStyle=i?'blue':'red'),T=t+i*1.57,K=C(T)**2,x.arc(960-v*S(2*T)*K,v-v*C(2*T)*K,v*(1-K),0,7);

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jesterjunk

remix of d/35946 by u/rodrigo.siqueira

function u(t) {

eval(unescape(escape`c򛡷򪑤򭁨ꏒꙓ򞱮㶐򜀻򩡯򬠨򪐽򞐻򪐼򫠻򪐫ꏒ򚑳ꏒ򛰨򞐮򜐭򚁴ꋲ򚱩⾙򚒩򚐬򮀮򨡥򩱩򫡐򨑴򪀨򚐬򮀮򫁩򫡥򥱩򩁴򪀽򬰪򬰬򮀮򬱴򬡯򪱥򤱴򮑬򩐽򨁨򬱬򚀤笰򚡩ꋑ򝑽ꋈ򝐥򛀤ꞷ򝐪򠰨򪐫򭀩򚠪򞁽򙐩򨀬򮀮򨑲򨰨򫠬㉀򚠨򜐫򬰩򛱳򛁳⪙򛁪򟑩ꊩ򛁪ꊶ򚐬򮀮򬱴򬡯򪱥򚀩`.replace(/u\D*/g,``)))

Jul 25 2026 10:05 PM UTC

}// 135/140

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three way remix of https://www.dwitter.net/d/106 and https://www.dwitter.net/d/35944 and https://www.dwitter.net/d/35946

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PotatoImaginator

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪁞👰👍𨑴𪀮𤁉𛰴𞱦𫱲𚁩🐭𝀰𝐻𪐼𝀰𝐻𪐫𚰩𮱦𫱲𚁪🐸𞱪𛐭𞱸𛡢𩑧𪑮𤁡𭁨𚁸𛡦𪑬𫀨𚐩𚑻𮀮𩡩𫁬𤱴𮑬𩐽𨁨𬱬𚀱𜰰𛀱𜀰𙐬𙁻𝐰𛑪𙐲𚠲𝑽𙐩𨀊𮀮𫁩𫡥𥁯𚀹𝠰𛁶🐵𝀰𚱩𚡃𚁴𚐩𒡸𛡡𬡣𚀹𝠰𛁶𛀨𝰲𞐰𜀭𪐪𪐩𚠪𜀮𝐬𨐽𪠪𬀫𬀯𜠫𭀬𨐫𬀩𯑽`.replace(/u../g,'')))

Jul 25 2026 4:38 PM UTC

}// 140/140

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#watermelon #fruit

u/PotatoImaginator

c.width^=p=Math.PI/4;for(i=-405;i<405;i++){for(j=8;j--;x.beginPath(x.fill())){x.fillStyle=hsl(130,100%,${50-j%2*25}%) x.lineTo(960,v=540+i*C(t)) x.arc(960,v,(72900-i*i)**0.5,a=j*p+p/2+t,a+p)}}