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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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BriSeven

remix of d/33552 by u/BriSeven

function u(t) {

c.width*=1
for(i=18;i--;x.setTransform(C(n=t)*2,-S(n),S(n)*2,C(n),960,99+i*5+500),x.font='5cm a')x.fillText('⚙️',-70,70)

Mar 19 2026 2:06 AM UTC

}// 120/140

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As The Gear Turns

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lewdev

remix of d/35084 by u/Xen

function u(t) {

t?0:document.body.innerHTML=`<select multiple style=height:99vh;background:#111;color:#AAA>`+Object.keys(this).map(s=>"<option>"+s).join``

Mar 18 2026 10:34 PM UTC

}// 138/140

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💻 Functional Select List. Add to style for bigger font: ;font:1cm'

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Xen

function u(t) {

i=1n,p=t=3n*(10n**1005n);while(t=t*i/((i+1n)*4n))p+=t/(i+=2n)
throw('3.'+(p+"").slice(1,1e3))

Mar 18 2026 6:24 PM UTC

}// 93/140

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𝝅

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Xen

remix of d/2932 by u/Xen

function u(t) {

for(i=c.width=9;i--;)x.fillStyle=R(T(a=i*t%74),x.fillRect(0,0,a,a),T(a*2))

Mar 18 2026 6:00 PM UTC

}// 74/140

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-ReMIX-

u/cantelope

#BLM

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Xen

function u(t) {

eval(unescape(escape`𒡴🱸𦱳👠𩡩𫁬𤱴𮑬𩑠𧐽𤠨𦠽𜐵𝐬𦠬𦠬𮐽𜐩𞡺👣𛡷𪑤𭁨🐳𜠰𒡸𦱦👠𩡩𫁬𤡥𨱴𨁝𚀰𛀰𛁺𛁺𚐊𮁛𬱝🐢𨡬𭑥𘠊𮁛𬱝👒𚁸𦱦𧐨𜰬𜰬𜰱𝀬𜐰𚐩𒡸𦱦𧐨𜰬𜐴𛀳𜐴𛀱𝠴𚐊𮁛𬱝🐢𭱨𪑴𩐢𒡦𫱲𚁩𘁩𫠠𮀩𮀮𩡩𫁬𥁥𮁴𚁩𛀵𛀱𜐪𮐫𚰩`.replace(/u../g,'')))

Mar 18 2026 5:39 PM UTC

}// 132/140

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u/cantelope

#dwitter.OS

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Axioplase

function u(t) {

c.width=1920;for(i=0;i<9;i++)x.fillStyle=R(1,1,1,.5*(1+S((S(t+1.5707)>0?i:-i)+t*9))),x.fillRect(400+i*100+S(t)*300,400,50,200)

Mar 18 2026 3:43 PM UTC

}// 126/140

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Caption

u/Axioplase

#default

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ximavus

function u(t) {

t?x.reset():(n=4,i=3)
n-=4/i
i+=2
n+=4/i
i+=2
x.font='2cm a'
x.fillText(n,0,60)

Mar 18 2026 3:31 PM UTC

}// 79/140

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Calculating π

u/cantelope

excellent!
u/Xen

nicely done ;-)

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rodrigo.siqueira

remix of d/35079 by u/rodrigo.siqueira

function u(t) {

for(x.fillRect(0,0,n=4e3,n--);n--;x.fillRect(960+a*C(k=n/9),540+a*S(k),w=a/40,w+S(k-t)*18),x.fillStyle=R(n,n/9))a=n/2+S(n+t*5)*5

Mar 18 2026 1:15 PM UTC

}// 128/140

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Moving ring

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KilledByAPixel

function u(t) {

for(i=w=2e3;i--;x.arc(290+t*4e4,540,F(p=i/w*(t*60+3))+F(p+.5)/2,a=i/318,a))F=z=>2*(1e4-(z%1*200-99)**2)**.5
x.beginPath(x.fill())

Mar 18 2026 4:42 AM UTC

}// 129/140

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Happy St Patty's Day 🍀 #clover

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rodrigo.siqueira

remix of d/35075 by u/rodrigo.siqueira

function u(t) {

for(x.fillRect(0,0,n=4e3,n);n--;x.fillRect(960+a*C(k=n/9),540+a*S(k),w=a/30,w),x.fillStyle=R(p=n+n*C(T(n/16-t)/9)/a*400,p/9,p/14))a=n/2+99/t

Mar 17 2026 3:20 PM UTC

}// 140/140

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Sunflower seed spiral

u/cantelope

buy it dinner first