Random dweets | Dwitter

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.

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marto1

remix of d/28110 by u/katur

function u(t) {

y=c.width=99
for(i=y;i--;x.fillStyle=R(S(i+t*.2)*y,5,5))
x.fillRect(i,66+S(i+t*.1)*66,C(i+t)*9,S(i*90/y+S(t))*9)

Jul 13 2023 8:53 PM UTC

}// 112/140

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some lossy code golfing

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robot0001

remix of d/1231 by u/iverjo

function u(t) {

c.width^=0;for(i=9;i<2e3;i+=4)s=3/(9.5-(t+i/99)%9),x.beginPath(),j=i*i*i+S(i+t+T(t)),x.lineWidth=s*s*s,x.arc(960,540,s*199,j,j+2),x.stroke()

Feb 26 2017 2:23 PM UTC

}// 140/140

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u/tapgiles

SO GOOD!!
u/iverjo

#tunnel

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doof

function u(t) {

l=localStorage
t||(l[u]=a=parseInt(l[u]||0)+1,c.outerHTML="You have viewed this dweet "+a+" time"+(--a?"s":""))

Dec 31 2017 8:45 AM UTC

}// 111/140

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Show more comments…
u/joeytwiddle

Novel!
u/trupples

That's awesome
u/sigveseb

Oh god we can do multi-dweet dweets by stashing things in localstorage
u/PiggyClone205

We need to compete for most times viewing this.
u/dogspace

yay http://prntscr.com/icoc13
u/lionleaf

#localStorage
u/joeytwiddle

The key is the sourcecode. Nice short way to generate a unique key!

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Xen

function u(t) {

x.fillText(u,c.width=-1,9)

Apr 9 2019 11:28 AM UTC

}// 26/140

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u/vinca

Good idea for creating strings.

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initramfs

function u(t) {

c.w=1//
for(i=1;i<10;i++)
x.fillRect(+i*+S(t)*200,40,90,9000) //

May 31 2021 3:50 AM UTC

}// 64/140

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u/Xen

Welcome to the dwitter family!
u/initramfs

thanks u/Xen!

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Xen

function u(t) {

x.fillText(code,c.width=-1,9)

Jun 27 2019 9:07 PM UTC

}// 29/140

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29byte #Quine

u/Xen

#nano

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Xen

remix of d/34352 by u/KilledByAPixel

function u(t) {

for(s=(i=1920)/innerWidth;i--;x.fillText(0,T*p+S*q,R*p+C*q))p=i/2e3,q=1-p
S=T,C=R
onmousemove=e=>(T=e.x*s,R=e.y*s)

Sep 25 2025 2:55 PM UTC

}// 114/140

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Slight golf

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u/lewdev

That's funny. The lines are made with zeroes! Some creative golfing there!
u/Xen

indeed, swap to 't' then try write name ;-)
u/lewdev

Nice! I like it! Switch 0 with t for interesting results!
u/ximavus

swap it to '_ '.repeat(25) and it looks a bit 3D
u/lewdev

🤯 New idea for 3Dish dweets!
u/ximavus

:D

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jonathan-potter

function u(t) {

c.width+=0
r=z=>Math.random()-.5
a=this.a||[...Array(1e4)].map(z=>[4e3*r(),3e3*r(),r(),r()])
a.map(b=>x.fillRect(b[0]+=b[2],b[1]+=b[3],7,7))

Oct 26 2018 9:13 PM UTC

}// 140/140

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random moving objects using window.a for persistence #floatingobjects

u/pavel

Js puts all vars into global namespace if you don't use 'var' or 'let' and t starts at 0 so you can do t?a.map(...):a=[...]
u/katkip

#ai

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taupelink

remix of d/15365 by u/taupelink

function u(t) {

c.width=500;p=[23,29,31,37][(frame>>5)%4];m=1;for(n=p,o=1;--n;x.fillText(m,30+12*m,7*o++))m*=n,m%=p,x.fillText(o-1?'x'+n+'≡':p+'-1=',0,7*o)

Aug 10 2019 7:19 PM UTC

}// 139/140

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Illustration of Wilson's theorem. For any prime p, (p-1)! is congruent to p-1 mod p,

u/joeytwiddle

😯🥴🤤

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taupelink

function u(t) {

r=Math.random;for(i=k=256;i--;x.fillRect(X,Y,w,2))X=r(Y=r()*1080)*2e3,a=X%k-128,b=Y%k-128,h=a*a+b*b,w=(X&k)==(Y&k)^(k<h&h<4e3)^(a*a<81|b<40)

Jan 9 2023 11:36 PM UTC

}// 140/140

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Prompt: Tessellation. #genuary #genuary12 #genuary2023

u/taupelink

Faster version: for(X=1920,k=256;X--;x.fillRect(X,Y,w,2))Y=t*120,a=X%k-128,b=Y%k-128,h=a*a+b*b,w=(X&k)==(Y&k)^(k<h&h<4e3)^(a*a<81|b<40)
u/taupelink

For reference, this dweet is d/26799