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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KilledByAPixel

remix of d/35959 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`󮌮󩭩󫍬󤭥󨽴󚌰󛌰󛌲󩜳󛌲󩜳󚜊󩭯󬬨󠜽󞜹󞽁󞽔󚼽󛬱󚝦󫽲󚍱󟜨󚍘󟝴󚽁󛼨󩜽󝜵󛽔󚜭󥌩󧭔󚜥󜼬󪜽󬝼󯌨󮌮󩭩󫍬󤽴󮝬󩜽󤬨󥌽󜜬󛜭󠜦󙬹󚭥󚜬󜜸󚜻󘝱󙬦󪜭󛜻󮌮󩭩󫍬󥍥󮍴󚍓󚌨󪜫󚍘󚬳󜍼󜌩󚬪󜼫󭌪󞝼󜌩󚬪󜼩󚼱󯌰󛍁󚬱󞜬󝜴󜌭󚍩󛜹󚜪󩜩󚝸󛭦󫽮󭌽󩜫󙽰󮌢󙼻`.replace(/u../g,'')))

Jul 25 2026 3:51 PM UTC

}// 140/140

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Welcome to the Matrix 🕶️

u/UEZ

#matrix Wait, I can see Neo and Trinity fighting Agent Smith...

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PotatoImaginator

function u(t) {

eval(unescape(escape`挮睩摴桞㴰㭸⹡牣⠹㘰ⱶ㴵㐰ⱶⰰⰷ⤻砮晩汬⠩㭦潲⡩㴲㭩ⴭ㭸⹦楬氨⤩砮扥杩湐慴栨砮晩汬却祬攽椿❢汵攧㨧牥搧⤬吽琫椪ㄮ㔷ⱋ㵃⡔⤪⨲ⱸ⹡牣⠹㘰⵶⩓⠲⩔⤪䬬瘭瘪䌨㈪吩⩋ⱶ⨨ㄭ䬩ⰰⰷ⤻`.replace(/u(..)/g,"$1%")))

Jul 25 2026 4:09 AM UTC

}// 134/140

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#circle Balance

u/PotatoImaginator

code is:
u/PotatoImaginator

c.width^=0; x.arc(960,540,540,0,7);x.fillStyle='';x.fill() x.beginPath();x.fillStyle='red'; x.arc(960-540*S(2*t)*(C(t)**2),540-540*C(2*t)*(C(t)**2),(540*(S(t)**2)),0,7);x.fill(); x.beginPath();x.fillStyle='blue'; x.arc(960+540*S(2*t)*(S(t)**2),540+540*C(2*t)*(S(t)**2),(540*(C(t)**2)),0,7);x.fill();

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PotatoImaginator

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪁞👰👍𨑴𪀮𤁉𛰴𞱦𫱲𚁩🐭𝀰𝐻𪐼𝀰𝐻𪐫𚰩𮱦𫱲𚁪🐸𞱪𛐭𞱸𛡢𩑧𪑮𤁡𭁨𚁸𛡦𪑬𫀨𚐩𚑻𮀮𩡩𫁬𤱴𮑬𩐽𨁨𬱬𚀱𜰰𛀱𜀰𙐬𙁻𝐰𛑪𙐲𚠲𝑽𙐩𨀊𮀮𫁩𫡥𥁯𚀹𝠰𛁶🐵𝀰𚱩𚡃𚁴𚐩𒡸𛡡𬡣𚀹𝠰𛁶𛀨𝰲𞐰𜀭𪐪𪐩𚠪𜀮𝐬𨐽𪠪𬀫𬀯𜠫𭀬𨐫𬀩𯑽`.replace(/u../g,'')))

Jul 25 2026 4:38 PM UTC

}// 140/140

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#watermelon #fruit

u/PotatoImaginator

c.width^=p=Math.PI/4;for(i=-405;i<405;i++){for(j=8;j--;x.beginPath(x.fill())){x.fillStyle=hsl(130,100%,${50-j%2*25}%) x.lineTo(960,v=540+i*C(t)) x.arc(960,v,(72900-i*i)**0.5,a=j*p+p/2+t,a+p)}}

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KilledByAPixel

remix of d/35956 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`󩭯󬬨󪜽󭼽󜽥󜼻󛜭󪜻󮌮󩭩󫍬󤭥󨽴󚌰󛍩󛍷󛌱󚜩󮌮󩭩󫍬󤽴󮝬󩜽󨍨󬽬󚌤󮽩󛼳󛝴󚬹󞝽󘌵󜌥󘌤󮼨󪜭󝜴󜌩󚬪󜬯󭽽󙝠󒭦󫽲󚍁󟜲󜜴󞽁󞽔󚼽󛬰󜜩󝬭󤼨󚌨󦌽󭌫󚍥󟝔󛼱󜌶󚜪󠜭󥌩󯌰󚜪󚬳󚜪󝜾󥍼󯍸󛭤󬭡󭽉󫝡󩽥󚍣󛍔󟜱󛍥󚭷󛌱󛌱󞜹󛌭󛝁󚬹󛌵󝌰󛜴󛽥󛌹󛌸󛽥󚜻`.replace(/u../g,'')))

Jul 24 2026 6:45 PM UTC

}// 139/140

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Wallpaper 🚪

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KilledByAPixel

remix of d/35954 by u/KilledByAPixel

function u(t) {

eval($=unescape(escape`󨼮󭽩󩍴󪍼󟝁󟜱󞜸󒭦󫽲󚍩󟜷󞼭󛝩󞽸󛭦󪝬󫍔󩝸󭌨󙌬󜌬󪜪󜜶󚜩󮌮󩭯󫭴󟜧󜝥󫜢󙼊󩭯󬬨󞽁󞽒󚼽󛬰󜜩󚌨󦌽󭌫󚍥󟝒󛼹󞜩󚭁󛝒󚝞󤬩󙜳󯍼󮌮󩍲󨝷󢝭󨝧󩜨󨼬󚍘󚽒󚼹󚜥󜜳󚬹󞜬󤬽󜜬󩜪󞜬󞜹󛍁󛜭󚬱󜌬󝜴󜌭󝌯󩜬󜜲󛌹󛽥󚜊󮌮󨽬󩝡󬭒󩝣󭌨󜌬󜌬󜭥󜼬󞜹󚜻`.replace(/u../g,'')))

Jul 23 2026 8:39 PM UTC

}// 139/140

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Walls of Code 👨‍💻 #quine

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PotatoImaginator

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪁞🐰𞱦𫱲𚁩🐰𞱩🀸𞱩𚰫𚑻𩡯𬠨𪠽𜀻𪠼𞀻𪠫𚰩𮱸𛡢𩑧𪑮𤁡𭁨𚁸𛡦𪑬𫀨𚐩𒡸𛡦𪑬𫁓𭁹𫁥👒𚁶🐨𪐫𪠩𙐲𚠲𝐶𛀱𜠸𛀲𝐶𛑶𚐊𮀮𨑲𨰨𜐲𜀫𜠴𜀪𪐬𝠰𚰲𝀰𚡪𛀱𜠰𚰱𜠰𚠨𜠪𚠮𝐭𜐩𚡓𚁴𚰨𪐫𪠩𚡍𨑴𪀮𤁉𚐬𜀬𝰩𯑽`.replace(/u../g,'')))

Jul 25 2026 9:14 AM UTC

}// 130/140

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sin(x)^2+cos(x)^2=1 #circle #trigonometry

u/PotatoImaginator

Code is
u/PotatoImaginator

c.width^=0;for(i=0;i<8;i++){for(j=0;j<8;j++){x.beginPath(x.fill()) x.fillStyle=R(v=(i+j)%2*256,128,256-v) x.arc(120+240*i,60+240*j,120+120*(2**.5-1)*S(t+(i+j)*Math.PI),0,7)}}

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jesterjunk

remix of d/35946 by u/rodrigo.siqueira

function u(t) {

eval(unescape(escape`c򛡷򪑤򭁨ꏒꙓ򞱮㶐򜀻򩡯򬠨򪐽򞐻򪐼򫠻򪐫ꏒ򚑳ꏒ򛰨򞐮򜐭򚁴ꋲ򚱩⾙򚒩򚐬򮀮򨡥򩱩򫡐򨑴򪀨򚐬򮀮򫁩򫡥򥱩򩁴򪀽򬰪򬰬򮀮򬱴򬡯򪱥򤱴򮑬򩐽򨁨򬱬򚀤笰򚡩ꋑ򝑽ꋈ򝐥򛀤ꞷ򝐪򠰨򪐫򭀩򚠪򞁽򙐩򨀬򮀮򨑲򨰨򫠬㉀򚠨򜐫򬰩򛱳򛁳⪙򛁪򟑩ꊩ򛁪ꊶ򚐬򮀮򬱴򬡯򪱥򚀩`.replace(/u\D*/g,``)))

Jul 25 2026 10:05 PM UTC

}// 135/140

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three way remix of https://www.dwitter.net/d/106 and https://www.dwitter.net/d/35944 and https://www.dwitter.net/d/35946

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KilledByAPixel

remix of d/35970 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`󩭯󬬨󮌮󩭩󫍬󤭥󨽴󚌰󛌰󛍷󟜲󩜳󛍷󚜬󠜽󞜹󞽁󞽔󚼽󛬱󚝦󫽲󚍘󟝁󛼨󩜽󞜹󛽔󚜪󜬭󥌬󪜽󚍘󚼱󙭔󚽴󚜥󝼼󜼦󥌼󞜹󯍼󚍸󛭦󪝬󫍓󭍹󫍥󟝠󪍳󫌨󜌠󞜹󙜤󮼭󛝁󙬦󩜪󜽽󙝠󛍔󟜰󛌲󜌩󞼭󛝩󞽸󛭦󪝬󫍔󩝸󭌨󚍘󚭷󧭩󚽴󚬳󜌩󚬪󜬥󜼬󠜪󜜹󛌵󝌰󛜨󪜭󞜩󚭥󚜩󮌮󩭯󫭴󟝥󚼧󬍸󘬧`.replace(/u../g,'')))

Jul 26 2026 7:26 PM UTC

}// 140/140

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Terminate 🦾

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Pushtak

function u(t) {

c.width|=A=198
for(x.fillText('🧇',0,12);A;R+=.01)((X=t+(e=R/99)*A-R)^R)%3||x.drawImage(c,(X+R)%1*11+1,R=1,e*9,14,A--*10,540-4/e,20,9/e)

Jul 26 2026 1:13 PM UTC

}// 135/140

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joeytwiddle

function u(t) {

c.width=1920
X=500*S(t*2)
Y=40*S(t+1)
x.font='18em s'
x.fillText('🍦',720-X,400+Y)
x.font='25em s'
x.fillText('🐈',700-X,800+Y)

Jul 24 2026 12:14 PM UTC

}// 125/140

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Cat with ice-cream by Emily

u/SockTaters

is this Emily's first dweet? I love it!
u/joeytwiddle

Sort of. Emily was the designer, and I was the coder. ;-)