Top dweets by u/ximavus

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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Current theme challenge: #Food

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ximavus

function u(t) {

t?_='Backspace':$=''
onkeydown=k=>{l=k.key;if(l.length<2|l==_){l==_?$=$.slice(0,-1):$+=k.key}l=='Enter'?(eval($),$=''):0}
throw $

Dec 11 2025 6:43 PM UTC

}// 129/140

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Dwitter-CMD! (click on the canvas, write dwitter code and press enter)

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ximavus

function u(t) {

t||x.translate(960,540)
onmousemove=e=>{R=e.x*3.4-960;T=e.y*3.4-540}
x.fillRect(R+C(t)*Math.hypot(R,T),T+S(t)*Math.hypot(R,T),9,9)

Nov 3 2025 3:27 PM UTC

}// 130/140

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Circles

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ximavus

function u(t) {

x.fillRect(x.globalAlpha=.1,0,2e3,2e3)
for(i=5e2;i--;)x.clearRect(960+S(t*i)*i,540-C(t*i)*i,9,9)

Oct 17 2025 12:32 PM UTC

}// 96/140

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Awesome spiral!

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ximavus

remix of d/34391 by u/lewdev

function u(t) {

onmousedown=onmouseup=e=>x.beginPath(A=e.buttons)
onmousemove=e=>A&&x.lineTo(e.x*3.4,e.y*3.4),x.stroke()
onkeydown=e=>{c.width|=0}

Oct 4 2025 8:06 AM UTC

}// 130/140

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golfing to add clearing screen

u/ximavus

Also add x.lineWidth= something at the start for thicc paint

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ximavus

function u(t) {

eval(unescape(escape`砮景湴㴧㔰灸⁁物慬✻琽捯摥⹳灬楴⠧屮✩㭦潲⡩㴱㭩㰽琮汥湧瑨ⴱ㭩⬫⤠筸⹦楬汔數琨瑛楝Ⱐ㔰Ⱐ椪㔰⤻紻`.replace(/u(..)/g,"$1%")))
x.fillRect(50, 50, 90, 90);

Sep 20 2025 3:54 PM UTC

}// 124/140

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Dwitter in dwitter!

u/ximavus

43 characters to code in it btw

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ximavus

function u(t) {

x.beginPath();
onmousemove=e=>{x.moveTo(e.x, e.y);x.lineTo(e.x*3, e.y*3);x.stroke();}

Sep 17 2025 3:24 PM UTC

}// 85/140

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Mouse demo

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ximavus

function u(t) {

for(x.reset(i=1e3);i--;)x.fillRect(960+S(t-i+C(t-i)*3)*960,540+C(t+i+S(t+i)*3)*540,20,20)

Jan 13 2026 8:03 PM UTC

}// 89/140

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Spirals

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ximavus

remix of d/34595 by u/ximavus

function u(t) {

eval(unescape(escape`𫐽𬰽🡸𛡦𪑬𫁓𭁹𫁥👳𒡭𚁒𚀩𚐊𭀿𮀮𩡩𫁬𤡥𨱴𚁸𛡧𫁯𨡡𫁁𫁰𪁡🐮𜐬𜀬𜡥𜰬𜡥𜰩𞡦👛𧐊𫑠𘰰𜁦𩠰𜁠𒡦𛡰𭑳𪀨𦱍𨑴𪀮𬡡𫡤𫱭𚀩𚠲𩐳𛀰𧐩𒡦𫱲𚁩👦𛡬𩑮𩱴𪀻𪐭𛐻𮀮𩡯𫡴🐧𜡣𫐠𨐧𚑸𛡦𪑬𫁔𩑸𭀨𤰨𩡛𪑝𦰰𧐩🠰🰱𞠰𛁦𦱩𧑛𜁝𛁦𦱩𧑛𜑝𚰽𞐩`.replace(/u../g,'')))

Dec 28 2025 9:56 AM UTC

}// 140/140

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Matrix but not from temu this time

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ximavus

function u(t) {

x.fillRect(x.globalAlpha=.1,0,2e3,1080)
X=_=>S(i+t/i)
Y=_=>C(i+t)
for(i=5000;i--;)x.clearRect(960+X()*960,540+Y()*540,9,9)

Dec 20 2025 10:01 AM UTC

}// 122/140

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Black hole

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ximavus

function u(t) {

x.fillRect(x.globalAlpha=.001/t,0,2e3,1080)
for(i=2e3;i--;)x.clearRect(i,C(t+i)**S(t+i)*t,9,9)

Dec 14 2025 7:27 PM UTC

}// 94/140

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Demonstration of a bug I found with x.globalAlpha. Breaking the .001961 limit. As long as it is more than .001961 at some point if will be valid

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