Dwitter - javascript demos in 140 characters

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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cantelope

function u(t) {

eval(unescape(escape`𩡯𬠨𤀽𦱮🐵𜀬𪐽𜰲𛁷👣𛡷𪑤𭁨🐱𜐲𧐻𪐭𛐻𚑐𦱩𧐽𦱮𚱃𚁴𚱩𚐪𫠬𪐪𚠳𙑷𛑮𧐻𩡯𬠨𪐽𞁥𜰻𩀽𪐭𛐻𮀮𩡩𫁬𤡥𨱴𚁘𛁙𛀱𛀱𛁸𛡦𪑬𫁓𭁹𫁥👒𚁥𚡮𛁥𚠪𜰩𚐩𤀮𫑡𬀨𚁱𛁪𚐽🠨𩠽𚁱𦰰𧐭𚁘👩𙑷𚐩𚠪𜠫𚁱𦰱𧐭𚁙👩𛱷𯀰𚐩𚠪𜠩🁤𙠦𚁥👦𛱷𛁤👦𚐩`.replace(/u../g,'')))

Mar 9 2026 11:11 PM UTC

}// 140/140

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voronoi magma style

u/UEZ

beautiful
u/dee-gomma

Great!
u/Xen

siick :O
u/ximavus

gosh how

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mathisvdr

function u(t) {

c.width|=0;for(x.fillRect(0,0,i=3e4,i);i--;x.fillRect(960+S(a)*S(b+t)*280,540+C(a)*280,5,2))x.fillStyle=`hsl(${b=i%60*6} 99%70%)`,a=i/50

Mar 10 2026 3:33 PM UTC

}// 136/140

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Wireframe sphere

u/ximavus

reminds me of CRTs

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AncientGarden

function u(t) {

c.width|=0;for(x.fillRect(0,0,i=3e4,i);i--;x.fillRect(960+S(i)*2*b,540+C(i)*b+S(t*6+b)*20,9,2))x.fillStyle=`hsl(${b=i%41*6} 99%70%)`

Mar 9 2026 2:27 PM UTC

}// 132/140

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Wave Pool

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rodrigo.siqueira

remix of d/34961 by u/cantelope

function u(t) {

for(c.width|=m=n=32;m--;)for(l=(.5+t%1/16+m/n)**n,i=320;i--;x.strokeRect(960+(i%n-9.02)*l,890+((i/n|0)-9.6)*l,W=l*.04,W*14))x.lineWidth=l/n

Mar 10 2026 12:52 PM UTC

}// 139/140

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Avenue

u/cantelope

"you're running through the woods, until..."

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cantelope

function u(t) {

eval(unescape(escape`𩡯𬠨𡠽𫠽🡸𛡦𪑬𫁒𩑣𭀨𞐶𜀫𨐬𪀫𨠬𞐬𞐩𛁨🐵𝀰𛁩👣𛡷𪑤𭁨𯀽𜀻𪐭𛐻𡠨𨐽𦀬𨠽𦐩𚑻𩡯𬠨𦀽𤰨𪐩𚠨𫀽𜐵𜀩𛁙👃𚁩𚐪𫀬𩀽𜀬𫐽𜰻𫐭𛐻𨠽𠰨𬐩𚡬𛁤👍𨑴𪀮𪁹𬁯𭀨𩐽𨐭𦀬𩠽𨠭𦐩𛰸𛁘𛐽𩐪𚁶🐹𛱤𚐬𡠨𦐭👦𚡶𚐩𨐽𤰨𬐽𜠪𫐩𚠨𫀽𪀪𠰨𭀫𫐩𚑽`.replace(/u../g,'')))

Mar 8 2026 10:07 PM UTC

}// 140/140

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repulsors and blobbo

u/ximavus

cant understand the code I see there's hypot tho so its for curving I guess

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cantelope

function u(t) {

eval(unescape(escape`𩡯𬠨𤀽𦱩👨🐶𝐬𭰽𨰮𭱩𩁴𪀽𜐱𜡝𞱩𛐭𞰩𤁛𪑝👛𚁩𚠪𜠫𭀪𚁩𙐲🱩𞡨𚐩𙑷𛁩𚡷𙑨𧐊𩡯𬠨𪐽𪀪𭰻𩀽𪐭𛐻𮀮𩡩𫁬𤡥𨱴𚁘𛁙𛀱𛀱𛁸𛡦𪑬𫁓𭁹𫁥👒𚁥𚠳𚐩𚑐𛡭𨑰𚀨𬐬𪠩🐾𚁦👍𨑴𪀮𪁹𬁯𭀨𬑛𜁝𛐨𦀽𪐥𭰩𛁱𦰱𧐭𚁙👩𛱷𯀰𚐩𚐼𩀦𙠨𩐽𪠬𩀽𩠩𚐻`.replace(/u../g,'')))

Mar 8 2026 1:18 AM UTC

}// 140/140

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voronoi cells

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KilledByAPixel

function u(t) {

eval(unescape(escape`󩭯󬬨󭼽󝬰󛍩󟜲󩜳󞽩󛜭󞽸󦽦󧜨󦌪󭼫󜼰󚼨󦌾󜜵󟼱󞬭󜜩󚭺󛝲󛍙󚭷󚼳󜌫󚍙󟬸󟼭󜜺󜜩󚭺󛝲󛍲󚬽󜬬󬬩󚝘󟜨󪜾󟬱󚜥󜼳󛍙󟝩󛼶󝭼󜌬󪜥󜬦󙭸󦽦󟜧󩭩󫍬󤭥󨽴󙽝󚍘󚭷󛍙󚭷󛍷󛍷󚜬󮌮󩭩󫍬󤽴󮝬󩜽󦌥󜭞󦜥󜬿󤬨󚜺󙼣󩭦󩬧󛍲󟜵󚼵󚭃󚍴󛝙󛼹󚜬󮬽󚍩󙜲󛜮󝜩󚬳󝜻`.replace(/u../g,'')))

Mar 10 2026 6:39 PM UTC

}// 139/140

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Bulging Checkerboard Illusion 🏁

u/KilledByAPixel

#illusion

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mathisvdr

function u(t) {

c.width|=0;for(x.fillRect(0,0,i=3e4,i);i--;x.fillRect(960+S(b+S(i/5)*t)*b*2,540+C(b+S(i/5)*t)*b,7,2))x.fillStyle=`hsl(${b=i%41*6} 99%70%)`

Mar 10 2026 3:33 PM UTC

}// 138/140

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Burst

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mathisvdr

function u(t) {

eval(unescape(escape`𩡯𬠨𤀽𦱮🐵𜀬𪐽𜰲𛁷👣𛡷𪑤𭁨🐱𜐲𧐻𪐭𛐻𚑐𦱩𧐽𦱮𚱃𚁴𚱩𚐪𫠬𪐪𪐥𭰭𫡝𞱦𫱲𚁩🐸𩐳𞱤👩𛐭𞱸𛡦𪑬𫁒𩑣𭀨𦀬𦐬𜐬𜐬𮀮𩡩𫁬𤱴𮑬𩐽𤠨𜀬𩐪𫠬𩐪𫠩𚐩𤀮𫑡𬀨𚁱𛁪𚐽🠨𩠽𚁱𦰰𧐭𚁘👩𙑷𚐩𚠪𜠫𚁱𦰱𧐭𚁙👩𛱷𯀰𚐩𚠪𜠩🁤𙠦𚁥👦𛱷𛁤👦𚐩`.replace(/u../g,'')))

Mar 10 2026 3:29 PM UTC

}// 140/140

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Blue Orbital Voronoi

u/cantelope

not upvoting, if it matters

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Xen

remix of d/35019 by u/mathisvdr

function u(t) {

for(i=2e3;i--;x.fillText(0,960+(6*C(a)+C(6*a))/7*400/Z,540+(6*S(a)-S(6*a))/7*400/Z))a=i/3e3*31.4,Z=1+S(a*3+t)*.3

Mar 10 2026 3:12 PM UTC

}// 112/140

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Slight golf