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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rodrigo.siqueira

remix of d/36060 by u/rodrigo.siqueira

function u(t) {

x.translate(850,-580)
with(x)beginPath(),arc(800,0,110,0,7),fill(),scale(.99,1),rotate(1)

Aug 2 2026 3:47 PM UTC

}// 89/140

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Circular space-filling

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erin

remix of d/36068 by u/erin

function u(t) {

c.width|=0
for(u=t*5%1,i=999;i--;)with(x)beginPath(),arc(960+1500*(z=.99**(i-13*u))*C(a=2.4*i+.216*u),540+1500*z*S(a),99*z,0,7),fill()

Aug 2 2026 5:32 PM UTC

}// 134/140

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Deeper and deeper...

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luta

remix of d/36061 by u/luta

function u(t) {

eval(unescape(escape`󨼮󭽩󩍴󪌽󜜶󜌻󬼽󜜵󞽷󪝴󪌨󮌩󩭯󬬨󩌽󝬻󩌭󛜻󚝦󫽲󚍪󟜲󝼻󪬭󛜻󦌪󠼨󭌩󛝙󚭓󚍴󚜾󜜱󚭤󛜲󜍼󯌨󩭩󫍬󤽴󮝬󩜽󤬨󪬥󜬪󞜹󛌹󞜩󛍢󩝧󪝮󤍡󭍨󚍦󪝬󫌨󨝲󨼨󞌰󚽘󚭓󚍴󚜫󦜪󠼨󭌩󛌳󝬫󦬬󝼬󜌬󝼩󚜬󬽴󬭯󪽥󚌩󚜩󚝘󟝪󙜳󚭳󛝳󛍙󟜨󪬯󜽼󜌩󙜳󚭳󛝳󛍚󟜨󪬯󞝼󜌩󚭳`.replace(/u../g,'')))

Aug 2 2026 2:07 AM UTC

}// 140/140

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NaCl crystal structure

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luta

remix of d/36035 by u/luta

function u(t) {

eval(unescape(escape`󭌿󜌺󨼮󭽩󩍴󪌽󜬴󜌊󩭯󬬨󩬽󫬽󪜽󪬽󪼽󜌻󫬼󜬻󫬫󚼩󬌽󭌪󝬰󛼲󝼪󚭮󛍱󟜳󚬪󫬬󢜽󬍼󜌬󢬽󬌯󜽼󜌬󢼽󬌯󞝼󜌬󩬫󟝉󙜳󙜲󚽊󙜳󙜲󚽋󙜳󙜲󟬾󜜬󪜫󟝉󙜳󚭱󛍪󚼽󢬥󜼪󬜪󜬬󪼫󟝋󙜳󚭱󞽦󯍼󭌪󝬰󟬷󜬸󯍼󮌮󩭩󫍬󥍥󮍴󚌢󧍵󡌸󜽅󧍵󡍄󠽁󘬬󝬶󚼹󚭩󛝪󛌹󞜫󪜫󪬭󞜪󪼩`.replace(/u../g,'')))

Jul 31 2026 9:51 AM UTC

}// 140/140

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Menger sponge #fractal

u/KilledByAPixel

very good surface area on this ice cube, i bet it melts incredibly fast
u/luta

the last ice cube is missing, i missed this one, better would be ||t>12.14|| in the code

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luta

remix of d/36061 by u/luta

function u(t) {

eval(unescape(escape`󨼮󭽩󩍴󪌽󜜶󜌻󬼽󜬲󞽷󪝴󪌨󮌩󩭯󬬨󩌽󝬻󩌭󛜻󚝦󫽲󚍪󟜹󛍘󟝙󟝚󟝳󛼲󞽪󛜭󞽘󟝪󙜲󚭳󛍙󟜨󪬾󟬱󚜥󜬪󬼬󦬽󚍪󛼵󯌰󚜪󬼩󦌪󠼨󭌩󛝙󚭓󚍴󚜾󜜱󚭤󛜲󜍼󯌨󩭩󫍬󤽴󮝬󩜽󘬣󝼹󞌢󛍢󩝧󪝮󤍡󭍨󚍦󪝬󫌨󨝲󨼨󞌰󚽘󚭓󚍴󚜫󦜪󠼨󭌩󛌴󝌫󦬬󞜬󜌬󝼩󚜬󬽴󬭯󪽥󚌩󚜩󞼻`.replace(/u../g,'')))

Aug 1 2026 6:54 PM UTC

}// 140/140

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bcc crystal structure

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luta

remix of d/36041 by u/luta

function u(t) {

eval(unescape(escape`󨼮󭽩󩍴󪌽󜜶󜌻󬼽󜜵󞽷󪝴󪌨󮌩󩭯󬬨󩌽󝬻󩌭󛜻󚝦󫽲󚍪󟜲󝼻󪬭󛜻󦌪󠼨󭌩󛝙󚭓󚍴󚜾󜜱󚭤󛜲󜭼󯍪󙜲󯍼󚍦󪝬󫍓󭍹󫍥󟜢󘼷󞌹󘬬󨭥󩽩󫭐󨝴󪌨󩭩󫍬󚍡󬭣󚌸󜌫󦌪󤼨󭌩󚽙󚭃󚍴󚜬󜼶󚽚󛌹󛌰󛌷󚜩󛍳󭍲󫽫󩜨󚜩󚜩󦌽󪬥󜼪󬼭󬼬󦜽󚍪󛼳󯌰󚜥󜼪󬼭󬼬󦬽󚍪󛼹󯌰󚜪󬼻`.replace(/u../g,'')))

Aug 1 2026 5:10 PM UTC

}// 140/140

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fcc crystal structure

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luta

function u(t) {

eval(unescape(escape`󨼮󭽩󩍴󪌽󜼲󜌻󨼮󬽴󮝬󩜮󩭩󫍴󩝲󟜧󪝮󭭥󬭴󚌱󙼻󩭯󬬨󪬽󝌴󞽪󛜭󞼩󦌽󤼨󪜽󪬫󭌩󚼲󚭓󚌲󚭩󚜬󦜽󠼨󪜩󛜲󚭃󚌲󚭩󚜬󦬽󛝓󚌳󚭩󚜬󩌽󦜪󤼨󨬽󠼨󭌩󚜫󠼨󨬩󚬨󩬽󦌪󤼨󭌩󛝚󚭢󚜬󮌮󩭩󫍬󤭥󨽴󚌱󝜰󚼲󜌪󚍘󚭢󚽚󚭓󚍴󚜩󛌹󝬫󜬰󚬨󦜪󠼨󨬩󛝓󚍢󚜪󩬩󛌴󛝤󛌴󛝤󚜻`.replace(/u../g,'')))

Jul 30 2026 11:13 AM UTC

}// 140/140

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trefoil #knot

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luta

remix of d/36070 by u/luta

function u(t) {

eval(unescape(escape`󨼮󭽩󩍴󪍼󟜰󒭧󟜨󦌬󦜬󬬬󩌬󫬬󨬩󟜾󮽳󟝱󟜾󬜥󜜫󚍱󯌰󚜥󜬪󚌱󛝱󙜱󚬲󚜻󨜽󮌽󟬨󬼨󮌥󜬫󝌩󛝳󚍸󙜲󚼴󛬵󚜩󒭦󫽲󚍫󟝮󚬲󚼱󞽫󛜽󜜯󜼲󞽸󛭦󪝬󫍒󩝣󭌨󦌫󭼪󠼨󭜽󪼯󫬪󜼮󜜴󚜬󦜭󭼪󤼨󭜩󛌴󛌴󚜩󭼽󬬫󩌪󨜨󨬫󪼩󯜻`.replace(/u../g,'')))
g(9,9,9,9,9,t)

Aug 2 2026 6:56 PM UTC

}// 138/140

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#Gears layout designer #tool - engineer's version

u/luta

Creations are compatible with the flower girls' version: g(714,280,243,48,18,-6*t);g(1206,280,243,48,18,6*t-.5);g(796,685,162,48,12,6*t+.6);g(1124,685,162,48,12,-6*t+.9);g(960,969,108,48,8,1/4);

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luta

function u(t) {

eval(unescape(escape`󨼮󭽩󩍴󪍼󟜰󞽧󟜨󦌬󦜬󬬬󩌬󫬬󨬩󟜾󮽰󟝍󨝴󪌮󤍉󞽡󟝸󟜾󤼨󬌪󮌫󬌪󝜯󝌩󛼲󞽳󟜱󛼳󜬻󒭦󫽲󚍫󟝮󚬲󚼱󞽫󛜽󬼻󮌮󩭩󫍬󤭥󨽴󚍘󚽷󚭃󚍵󟝫󛽮󚭰󚜬󦜭󭼪󤼨󭜩󛌴󛌴󚜩󭼽󩌪󨜨󨬫󪼩󚽲󚬨󜜭󪼯󬼥󜬪󛬸󚝽`.replace(/u../g,'')))
g(960,540,99,99,8,-t)

Aug 2 2026 6:54 PM UTC

}// 140/140

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#Gears layout designer #tool - flower girls' version

u/luta

To get things into gears - here is my first creation with the title "engineering students in love": g(714,280,243,48,18,-6*t);g(1206,280,243,48,18,6*t-.5);g(796,685,162,48,12,6*t+.6);g(1124,685,162,48,12,-6*t+.9);g(960,969,108,48,8,1/4);

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erin

remix of d/36066 by u/rodrigo.siqueira

function u(t) {

c.width|=0
for(x.translate(960,540),i=1e4;i--;)with(x)beginPath(),arc(1e4,0,300,0,7),fill(),scale(.98+S(t)/100,1),rotate(1)

Aug 2 2026 5:29 PM UTC

}// 123/140

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Wormhole...