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

} // 112/140

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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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rodrigo.siqueira

remix of d/33993 by u/rodrigo.siqueira

function u(t) {

c.style.filter=`invert()`
for(i=3e4;i--;x.fillRect(960+X/Z,700-Y/Z,.05,t<3))r=S(i*i/t)**2,X=S(k=i/2)*840,Y=C(k)*830,Z=T(S(i/4)**(.1))*4-.5/r

Jun 18, 2025 7:27 AM

}// 140/140

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Drop of light

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zibx

function u(t) {

eval(unescape(escape`氽挮睩摴栽㠴〻景爨椽㉥㐻椭ⴻ⥹㵩⽬Ⱬ㴨㐫匨礪㈭琩⨳⤪䌨椯㈹⤬攽礯㠭ㄱⱤ㴨欪欫攪攩⨪⸶㘬焽匨欪㈩⬮㌯欫匨礯㈵⤪欪⠹⬴⩓⡥⨹ⵤ⨳⭴⨲⤩ⱐ㵤⵴ⱸ⹦楬汒散琨焪匨倩⭤⨳㤭氯㈬焫㌰⩃⡐⤫氯㐬ㄬㄩ`.replace(/u(..)/g,"$1%")))

Jun 15, 2025 4:51 PM

}// 139/140

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Sea creature

Show more comments…
u/zibx

Original code:
u/zibx

l=c.width=840;for(i=2e4;i--;)y=i/l,k=(4+S(y*2-t)*3)*C(i/29), e=y/8-11, d=(k*k+e*e)**.66,q=S(k*2)+.3/k+S(y/25)*k*(9+4*S(e*9-d*3+t*2)),P=d-t, x.fillRect(q*S(P)+d*39-l/2,q+30*C(P)+l/4,1,1)
u/KilledByAPixel

d/32892 https://x.com/yuruyurau/status/1863597356786…
u/cantelope

code and effect are quite different i think, from yonatan's
u/rodrigo.siqueira

Haku's Flight - A Scene from Spirited Away.
u/zibx

https://x.com/yuruyurau/status/1933629116575… it was remade from this tweet. It is ~similar, but I can not use original amount of numbers. I want another dwitter with at least 280 symbols limit, or at least more functions shorthands =(

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rodrigo.siqueira

function u(t) {

c.style.filter=`invert(`
x.fillStyle=R(0,255,200)
for(i=2e4;i--;x.fillRect(960+C(i)*99/Z,S(i)*99/Z+540,.1,t<3))Z=C(T(i*i))*S(i/1.4)-.03/t

Jun 17, 2025 1:37 PM

}// 137/140

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Red Pentagram #pentagram

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rodrigo.siqueira

remix of d/33997 by u/zibx

function u(t) {

eval(unescape(escape`𨰮𬱴𮑬𩐮𩡩𫁴𩑲👠𪑮𭡥𬡴𚁠𞱬👣𛡷𪑤𭁨🐹𞐰𞱦𫱲𚁩🐱𩐴𞱩𛐭𞱸𛡦𪑬𫁒𩑣𭀨𚁄👩𙐲𛐮𝐩𚠨𩀪𞐲𛑬𚐫𝐰𜀫𡀪𠰨𭀩𚠹𞐬𬐫𞐪𠰨𤀯𡀫𡀩𚱬𛰴𛀱𛀱𚐩𮐽𪐯𫀬𪰽𚀵𛑓𚁹𚠲𛑴𚐪𜰩𚡃𚁩𚐬𩐽𮐯𞀭𞐬𩀽𚁫𚡫𚱥𚡥𚐪𚠮𝠬𬐽𤰨𮐩𚡫𚡥𛁐👤𛑴𚠳`.replace(/u../g,"")))

Jun 16, 2025 1:14 PM

}// 138/140

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Kiss

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just_me_7k

function u(t) {

for(i=11;i--;x.fillRect(960+C(a)*r,540+S(a)*r,10,2))
a=i+t,r=t*50,x.fillStyle=R(i,200-i,300)

Jun 18, 2025 4:44 PM

}// 92/140

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NOW ⏱️

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just_me_7k

function u(t) {

for(i=32;i--;x.fillRect(i*70,540,50,-S(t*9+i)*99))x.fillStyle=R(i*16,255-i*16,51)

Jun 18, 2025 4:31 PM

}// 81/140

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Music Bar

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just_me_7k

function u(t) {

for(i=9e3;i--;x.fillRect(960+C(i*t)*i/9,540+S(i*t)*i/9,2,2))x.fillStyle=R(i%512,4431-i%255,0)

Jun 18, 2025 4:28 PM

}// 93/140

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just_me_7k

function u(t) {

x.fillStyle=R(0,150,255,S(t)*.2+.1)
x.beginPath()
x.arc(960,540,200+300*S(t),0,7)
x.fill()

Jun 18, 2025 4:24 PM

}// 90/140

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just_me_7k

function u(t) {

r=v=>v*Math.random()
x.fillStyle=R(r(512),r(252),r(140),.6)
x.fillRect(r(1920),r(1080),r(150),r(100))

Jun 18, 2025 4:22 PM

}// 101/140

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just_me_7k

function u(t) {

r=v=>v*Math.random()
x.fillStyle=R(r(512),r(252),r(140),.6)
x.fillRect(r(1920),r(1080),r(150),r(100))

Jun 18, 2025 4:22 PM

}// 101/140

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