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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remix of d/34411 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`景爨爽㔰〬椽ㅥ㐻椭ⴻ砮晩汬剥捴⠹㘰⭲⩘ⰵ㐰⭲⩙ⰱⰱ⤩娽椪⨮㤥ㄬ圽ㄭ娪娪吨琩ⱘ㵗⩓⡡㵩⩴⤬夽圪䌨愩ⱸ⹦楬汓瑹汥㵒⡶㴨匨琩⩚ⵃ⡴⤪堭夯㈩⨹㤹ⱶ⼹ⰹ㤪匨琩⤠`.replace(/u([^D].)/g,'$1%')))

Oct 17 2025 12:38 AM UTC

}// 126/140

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KilledByAPixel

remix of d/34419 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`󬜽󩭲󨝭󩜡󟜹󒭦󫽲󚍩󟜱󩜴󛍁󟝱󙬦󠼨󭌪󟜲󝜩󛍂󟝓󚍴󚜻󭌼󝬦󙬭󛝩󞽸󛭦󪝬󫍒󩝣󭌨󞜶󜌫󠜪󞌰󜌫󬬪󦌬󝜴󜌫󬬪󦜭󠬪󜼰󜌬󬬯󟜹󛍲󚜩󬬽󬜿󭌿󞜹󞭩󞬳󜌰󛍚󟝩󚬪󛬹󙜱󛍗󟜱󛝚󚭚󛍘󟝗󚭓󚍩󚜬󦜽󥼪󠼨󪜩󛍸󛭦󪝬󫍓󭍹󫍥󟝴󙬦󤬨󭬽󚍂󚭚󛝁󚭘󚼡󬜪󥼩󚬸󜌰󛍶󛼳󛌷󜌩`.replace(/u../g,'')))

Oct 16 2025 1:11 AM UTC

}// 140/140

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Lunar Cycle 🌗

u/magna

Lunacy!
u/BriSeven

only 13? that's less than half the full set!

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rodrigo.siqueira

remix of d/34415 by u/rodrigo.siqueira

function u(t) {

c.style.background=`linear-gradient(#adf,#eef,#ffe,#bcd)`
for(i=c.width|=0;i--;x.globalAlpha=k/399)x.fillRect(399+(k=i**(t%10)),750-k,k,k/8)

Oct 15 2025 3:37 PM UTC

}// 140/140

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Sky flow

u/ximavus

Awesome

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KilledByAPixel

remix of d/34421 by u/KilledByAPixel

function u(t) {

for(i=2e4,A=S(t*=600)*960,r=t%150;i--;x.fillRect(960-A+r*X,t+r*Y,7,7))Z=1-i**.9%1,X=Z*S(i),Y=Z*C(i),x.fillStyle=R(v=A*X-t+t*Z-Y*400,v/5+99)

Oct 16 2025 4:26 AM UTC

}// 139/140

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Lit Spheres 🎾

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remix of d/34244 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`景爨挮睩摴栦㵩㴱攴㭩ⴭ㭘⩃⡴⤭娪匨琩㸰☦砮晩汬剥捴⠸㤶⬴㔰⨨堪匨琩⭚⩃⡴⤩ⰵ〴⭲⩓⡡⽴⤪㐵〬㤬㤩⥚㵩⼵攳ⴱⱲ㴨ㄭ娪娩⨪⸵ⱘ㵲⩃⡡㵩⨪㌮ㄥ㘶ⴳ㌩`.replace(/u([^D].)/g,'$1%')))

Oct 17 2025 12:07 AM UTC

}// 122/140

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KilledByAPixel

remix of d/34411 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`󩬽󭌪󝬰󯌰󒭁󟝓󚍦󛜽󜬰󚜊󠬽󩬯󞜊󩭯󬬨󪜽󜝥󝌬󬬽󭌿󩬪󚬸󙜵󞜫󞜫󘝦󚬲󜌰󞭩󞽩󛜭󞽸󛭦󪝬󫍒󩝣󭌨󞜶󜌭󠜪󞜰󜌫󬬪󦌬󝌷󜌫󬬪󦜫󠬪󜜹󞜬󬜽󬬯󞜬󬜩󚝚󟝩󚬪󜬮󜜥󜜬󥼽󜜭󦬪󦬬󦌽󥼪󤼨󪜩󛍙󟝗󚭃󚍩󚜬󮌮󩭩󫍬󤽴󮝬󩜽󭌦󙭒󚍶󟜨󩬿󠜪󦌭󠬪󦬯󜬺󜜩󚬴󜌰󛍶󚭚󛌶󜌩`.replace(/u../g,'')))

Oct 15 2025 6:30 AM UTC

}// 140/140

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Sunlight ☀️

u/ximavus

Nice!
u/magna

OMG!

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rodrigo.siqueira

remix of d/34417 by u/marquisdegeek

function u(t) {

for(i=c.width|=0;i--;x.globalAlpha=k/390,x.fillRect(0,600+k/.43,2e3,k))x.fillRect(960+(T(i%2)-.9+S(t)/5)*(k=1.25**(i+t%2)),600-k,k/5,1.5*k)

Oct 14 2025 1:37 PM UTC

}// 139/140

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Distance fog effect #uncompressed

u/joeytwiddle

#default #d3

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WowzerW

function u(t) {

for(i=0;i<1e3;i++)z=i/9+t*5;X=960+800*Math.sin(z)/z;Y=540+800*Math.cos(z)/z;x.fillStyle=`hsl(${z*50},100%,50%)`;x.fillRect(X,Y,4,4)

Oct 16 2025 8:54 PM UTC

}// 132/140

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My best attempt

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WowzerW

function u(t) {

for(i=0;i<999;i++)x.fillStyle=`hsl(${t*99+i},99%,50%)`,x.fillRect(960+600*Math.sin(t+i/9)/i*9,540+600*Math.cos(t+i/9)/i*9,3,3)

Oct 16 2025 8:53 PM UTC

}// 126/140

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I am new and Hello World!

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WowzerW

function u(t) {

for(i=0;i<1e3;i++)x.fillRect(960+400*Math.sin(t+i/9)/i*9,540+400*Math.cos(t+i/9)/i*9,2,2)

Oct 16 2025 8:52 PM UTC

}// 89/140

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