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

Please log in (or register) to post a dweet (copy-paste the code somewhere safe to save it meanwhile)


    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

show FPS hide FPS share fullscreen

46uuuu

function u(t) {

x.fillRect(t**=t,t,t,t)

Jun 19 2026 1:26 AM UTC

}// 23/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Stairs (extreme 23 byte)

u/SockTaters

d/32731

show FPS hide FPS share fullscreen

46uuuu

function u(t) {

throw code.split("").reverse().join("")

Jun 19 2026 12:27 AM UTC

}// 39/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

u/joeytwiddle

#eniuq

show FPS hide FPS share fullscreen

SockTaters

remix of d/35644 by u/46uuuu

function u(t) {

t?c.width|=0:s=99 
x.font=s+"px'"
a=s<800
x.fillText(a?"👼":"👹",800-s/2,800)
s+=playing-1&&a&&200

Jun 17 2026 10:07 PM UTC

}// 96/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

normal angel, don't worry about it

u/SockTaters

This seems to work on the old frontend but not the new one, for both mobile and desktop

show FPS hide FPS share fullscreen

taupelink

remix of d/35639 by u/taupelink

function u(t) {

a=x=>x**8/1216;f=(v,m=i%5+1)=>a((m?f(v,m-1):v%6)-3);g=n=>f(X/n)<f(Y/(n^7));for(i=1e4;i--;x.fillRect(8*X,8*Y,g(2),g(5)))X=i*t%240,Y=X*i%120

Jun 18 2026 9:16 PM UTC

}// 138/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

d/35657

show FPS hide FPS share 3 remixes fullscreen

taupelink

remix of d/35633 by u/taupelink

function u(t) {

for(i=z=1080;i--;x.fillRect(t*320,i,9,z/=.8-S(i/r)/e/2))x.fillStyle=R(r=1+(z>>=1)*++z*4,r*(q=.8+z%2/3),r*q*q,.4),z+=4-4*S(i**.4-3*S(e=z+t))

Jun 17 2026 8:06 PM UTC

}// 139/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

d/35647

show FPS hide FPS share 1 remix fullscreen

46uuuu

function u(t) {

c.width|=0
x.font="99px'"
for(i=0;i<9;i++)x.fillText(playing?"🙂":"😭",400+i*120+S(t)*300,800)

Jun 17 2026 3:37 PM UTC

}// 92/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

#default but with #emojis (catch them by scrolling and they become 😭)

u/SockTaters

that's a funny concept -- they change their behavior when you're not looking at them like weeping angels
u/joeytwiddle

Cool! #trick

show FPS hide FPS share fullscreen

SockTaters

remix of d/35580 by u/rodrigo.siqueira

function u(t) {

for(X=Y=i=5e3;i--;x.fillText('🔳',X*80+1e3-12*t,Y*50+180))r=(X*X+Y*Y)**.5,s=T(i*i)>0||-1,Y=s*(r-X)**.7*(i%2||-1),X=s*(r+X+S(t*2)/4)/3+S(X)

Jun 16 2026 7:33 AM UTC

}// 137/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Creepy Crawlies

u/Axioplase

Damn! Legendary.
u/SockTaters

Thanks!
u/magna

d/32513

show FPS hide FPS share fullscreen

taupelink

remix of d/35622 by u/taupelink

function u(t) {

a=x=>4*S(x*.3655)**2;f=u=>a(a(a(u%16-8)-10)-12);g=n=>f(X/n)*f(Y/(n^4))&3;for(i=3e4>>t;i--;x.fillRect(8*X,8*Y,g(1),g(5)))X=i*t%240,Y=X*i%135

Jun 17 2026 1:34 PM UTC

}// 139/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

d/35642

show FPS hide FPS share fullscreen

46uuuu

function u(t) {

a=(Math[([]+!!1)[1]+([]+![])[1]+([]+[][[]])[1]+([]+[][[]])[2]+"om"]()*100|0)+1
userFunction=_=>{throw'Comment number '+a+' below, i beg 🤬'}

Jun 19 2026 1:31 AM UTC

}// 139/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

u/joeytwiddle

// number 21

show FPS hide FPS share fullscreen

46uuuu

function u(t) {

l=3
l-=0
throw l?l-1?l-2?l-3?"Invalid level":8e250:6e35:4e8:1

Jun 19 2026 1:15 AM UTC

}// 61/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

change level (l)