Top dweets this month

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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mxfh

remix of d/2119 by u/mxfh

function u(t) {

x.fillStyle='#C8102E'
x.rect(150,a=540,a*3,a)
x.arc(780,a,360,0,a)
x.fill`evenodd`

Jan 17 2026 12:27 AM UTC

}// 82/140

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canonical ratios and colors

u/mxfh

#flags #greenland
u/mxfh

#flag
u/ximavus

I didn't know the ratio and color of the Greenland flag #themoreyouknow
u/mxfh

also 36 chars less than 2017 version with no wild changes. A bit sad that all polar methods to draw it end up somewhat longer.
u/vain

https://upload.wikimedia.org/wikipedia/commo…

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Axioplase

function u(t) {

c.width=100;for(j=60;j--;)for(i=110;i--;)x.fillStyle=R(0,0,255,.03),x.fillRect(i+S(t+(j*j+i)/9)-9,j+C(t+(i+j)/9)-1,3,2)

Jan 13 2026 10:52 PM UTC

}// 119/140

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Stream

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XOVT

function u(t) {

c.width|=0;for(i=2e3;i--;){q=i-960;y=700+q*q/2e3;x.fillRect(i,y,1,9);a=i+t*9;z=i%200/60;x.fillRect(960+S(a)*z*80,540-z*160,2,2)}

Jan 9 2026 8:34 PM UTC

}// 128/140

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DazeWare

remix of d/1968 by u/nystrand

function u(t) {

for(l=c.width=512,a=C(t),b=S(t);l--;x.fillRect((k-a*a*i-b*a*j+b/a)*z+300,(a*i+b*j)*z+99,d=.1*z/a,d))i=l%6,j=l>>3&7,k=l%8-4,z=20+b*i-a*j*t

Jan 6 2026 10:50 AM UTC

}// 137/140

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u/ximavus

wheres the tan for the X coord?

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rodrigo.siqueira

remix of d/34835 by u/DazeWare

function u(t) {

c.style.filter='invert()sepia('
for(i=1e4;i--;x.fillRect(960+X*60,610-Y*50,t<2,.1))F=i%(4+6/t),X=F*S(k=i/t)/2-4*S(w=k/9),Y=5*T(k*3)+F*C(w)/5

Jan 24 2026 2:11 AM UTC

}// 140/140

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Columns

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rodrigo.siqueira

remix of d/34789 by u/rodrigo.siqueira

function u(t) {

c.style.filter='invert()sepia('
for(i=1e4;i--;x.fillRect(960+X*65,750-Y*60,t<2.5,.1))F=i%(4+9/t),X=F*S(k=i/t)-4*S(k*2),Y=F*C(k)

Jan 22 2026 1:41 PM UTC

}// 127/140

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Concentric volumetric triangle

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DaSpider

function u(t) {

eq="x**4-4*x-99"
t?1:(x=9e9,i=-5e8)
f=(x)=>eval(eq)
if(f(x+i)>0)x+=i;else i/=10
throw "x ≈ "+x+"\n"+eq+" = "+f(x)+"\nerr = "+i

Jan 20 2026 3:56 AM UTC

}// 126/140

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Brutre force solver for eq=0, any equation in JS/Math. format with real solutions

u/DaSpider

For other solutions, switch signals on x andi/change initial value, etc. Based on a classroom example of "loops" t.co/ADQm7hLeCD

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codezmr

function u(t) {

for(i=1500;i--;x.fillRect(960+u*6,540+v*6+S(u/4+t)*9,6,6))u=i%50-25,v=i/50-15,x.fillStyle=u*u+v*v<9?"#008":v<-5?"#F93":v>5?"#180":"#FFF"

Jan 16 2026 2:31 PM UTC

}// 136/140

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codezmr

function u(t) {

c.width|=0;for(i=9;i--;)x.fillRect(i?(i*400+9e4-t*900)%2e3:300,600-(i?0:Math.abs(S(t*5))*250),i?40:50,i?80:50);x.fillRect(0,680,2e3,5)

Jan 16 2026 2:17 PM UTC

}// 134/140

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kyle_serbov

remix of d/34730 by u/kyle_serbov

function u(t) {

for(i=9999;i--;X+=A[D],Y+=A[D^3])!t++&&(M={},A=[S=D=0,4,0,-4],X=Y=600),x.fillRect(X,Y,4,4),M[X+A[r=-~D%4]+[Y+A[r^3]]]||(D=r),M[X+[Y]]=S++%55

Jan 10 2026 10:33 AM UTC

}// 140/140

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made it faster

u/kyle_serbov

You can change the number '55' at the end to give a different pattern.
u/ximavus

If you remove the %55 entirely it fills and leaves a internet logo