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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meowmixjw

function u(t) {

for(c=0;c<256;c++)l=100*Math.abs(S(c/10+t/2)),x.fillStyle=R(l,(t*12e3)%1480*S(c/10+t/2)/C(t)/6,l),x.fillRect(c*8,((t*12e3)%1480)-200,8,240)

Aug 20 2018 9:03 PM UTC

}// 139/140

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Test using t as the y axis, like a scan line

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sigveseb

function u(t) {

c.F=c.F||(x.translate(n=960,f=540),w=127);x.rotate(1/n);x.fillStyle=R(w*t,w*t,w*t);x.fillRect(0,2*w*S(t),t,1);x.drawImage(c,-n,-f)

Jan 8 2016 1:46 AM UTC

}// 130/140

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Xen

remix of d/5836 by u/Xen

function u(t) {

for(t?i=Z:Z=c.width=99;i--;x.fill(x.arc(49-39*C(t+i),29+19*S(t+i/(S(t)+2)),i/9,0,9)))x.fillStyle=`hsla(${i*t*9},99%,20%,.1)`,x.beginPath()

Jan 10 2018 6:38 PM UTC

}// 138/140

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slight tweak...

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andrea270872

function u(t) {

x.fillStyle='#0DE'
for(i=~~t%7;i--;x.fillRect(1e3+9*t*S(6-i),500+10*t*C(6-i),5,5));
x.drawImage(c,0,0,2e3,1e3,T=t%3,T,2e3-2*T,1e3-2*T)

Dec 31 2020 4:21 PM UTC

}// 134/140

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snow crystals

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CaptainMeat

function u(t) {

f=n=>{return parseInt(((((1+5**(1/2))/2)**n)-(((1-5**(1/2))/2)**n))/5**(1/2))}; throw `Fibonacci ${t&t}: ${f(t&t)}`

May 4 2022 5:56 PM UTC

}// 115/140

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#fibonacci

u/CaptainMeat

gets funky after 100

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yokljo

remix of d/8339 by u/yokljo

function u(t) {

c.width|=0
f=i=>(s=~~(i/2),i%2)<1?s:(i-1)-s
for(i=200;i--;)x.fillRect(i*(f(t+3)-f(t))+f(t)*200,900+(S(t+i*~(t/2))+C(i/32)*2)*20,7,7)

Jun 1 2018 3:46 PM UTC

}// 132/140

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Wormy worm

u/yokljo

#worm

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katkip

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪀪🐱𞱦🐨𦀬𦐬𬰩🐾𮱸𛡢𩑧𪑮𤁡𭁨𚀩𞱦𫱲𚁩🐵𞱩𛐭𞰩𮀮𨑲𨰨𦀫𤰨𪐪𜐱𚐪𬰬𦐫𠰨𪐪𜐱𚐪𬰯𜠬𜀬𜀬𜀩𞱸𛡦𪑬𫀨𚐻𯐊𩡯𬠨𪠽𜐲𞱪𛐭𞰩𩡯𬠨𬐽𜐴𞱱𛐭𞰩𩠨𪠪𜐸𜀭𝀰𛁱𚠹𜀫𤰨𮠽𚁪𛰴𚡃𚁴𚐫𬐯𝀪𤰨𭀩𚱴𚐩𚠱𜀭𜰰𛀹𜀫𤰨𛑺𚐪𜰩`.replace(/uD./g,'')))

Sep 19 2019 7:09 PM UTC

}// 137/140

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Dizzy floor

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artfarnaa

function u(t) {

 for (c.width|=a=12;--a;x.arc(960+S(G+t)*400,
 540+C(t+G*1)*400,a%2*137*Math.abs(S(t))*4,0,
 6.2832))x.moveTo(G=a/2|0,0)
 x.fill('evenodd')

Aug 8 2017 1:22 AM UTC

}// 139/140

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u/donbright

great use of evenodd

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rodrigo.siqueira

remix of d/34430 by u/rodrigo.siqueira

function u(t) {

c.width|=c.style.filter=`invert()`
for(i=190;i--;)x.fillRect(940+S(T(i+4)*i)*6*(k=1.005**i**((t+i/9)%9/6+1)),540-(T(i))*k,k/3,k*2)

Oct 19 2025 5:08 PM UTC

}// 130/140

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#default space warp

u/joeytwiddle

My God, it's full of monoliths!
u/ximavus

"Were currently traveling through the monolith belt and reaching Jupiter soon"

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KilledByAPixel

function u(t) {

eval(unescape(escape`󡬽󧼽󟭻󭍲󮝻󨜽󩝶󨝬󚍃󛭶󨝬󭝥󚝽󨽡󭍣󪌨󩜩󮽡󟝥󯜊󭌦󙭅󨍤󪝶󨌊󠼮󪝮󫭥󬭈󥍍󣌽󨜊󡝠󪝮󬍵󭍠󒭃󛭳󭍹󫍥󟜧󨭯󬭤󩝲󞬱󬍸󘍳󫽬󪝤󙼊󠼮󩭯󨽵󬼨󚜊󠼮󫽮󪽥󮝤󫽷󫬽󩜽󟭥󛭫󩝹󠽯󩍥󛜱󜽼󯍆󚌩󯜊󭍼󯍆󚍅󟝟󟜾󨼮󨭥󩭯󬭥󚍃󟝤󫽣󭝭󩝮󭌮󨽲󩝡󭍥󡝬󩝭󩝮󭌨󧼩󚜩`.replace(/u../g,'')))

Mar 26 2026 4:44 PM UTC

}// 139/140

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JS Console 💻

Show more comments…
u/ximavus

goodness how did you even come close to fit this
u/cantelope

#REPL
u/cantelope

great!
u/lewdev

Works as a calculator too. #interactive
u/KilledByAPixel

you can also still draw to the canvas if you do like x.fillRect(0,0,99,99)
u/46uuuu

it dont works on mobile