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: #ScaryMovies

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Agnes

function u(t) {

for(c.width|=i=9;i--;)x.fillRect(100*(i+3*S(t)+4),400,50,200)

x.globalAlpha=.005
for(W=960;W--;x.drawImage(c,-W,W,1920+2*W,1480-W));

May 3 2024 8:40 AM UTC

}// 133/140

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Screenspace reflections (ft. DJ 3 FPS)

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HardlyProductive

function u(t) {

for(i=0;i<1500;i++)
x.fillText("⚫",800+i*C(t),800+i*S(t))

May 3 2024 1:11 PM UTC

}// 57/140

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KilledByAPixel

function u(t) {

for(t*=60,i=3e3;i--;x.fillRect(i-t,t,1,-9-h))h=(X=i>>7)%4&&(Y=t>>6)%4&&C(X*X|Y)**6*265,x.fillStyle=R(v=h?i%32<29?t%16<13?99:255:40:9,v,v^h)

May 1 2024 1:54 AM UTC

}// 139/140

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Building Blocks 🏢

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taupelink

remix of d/31676 by u/taupelink

function u(t) {

eval(unescape(escape`朽渽㸨⡮⼴⬨⡡㵘╮⵮⼲ⵙ┨瀽㌫堯渥㕼〩⭰⼲⤪⡢㵙╮⵮⼲⭘┨焽㌫夯渥㕼〩⵱⼲⤭愪愭截戩⨪㈩⨪⸵☳⤯㌻景爨椽ㅥ㐻椭⴦♴㰳㭸⹦楬汒散琨㈴〫㌲⩘ⰶ〫㌲⩙Ⱨ⠲⤬木㌩⤩堽椪椪琥㐵ⱙ㵘⩩┳〠`.replace(/u([^D].)/g,'$1%')))

May 1 2024 11:28 PM UTC

}// 139/140

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d/31693

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rodrigo.siqueira

function u(t) {

c.style.background=`#038`
for(c.width=i=1920;i--;x.fillRect(960+k*S(i/200-t/2),240+C(t+i/99)*99+k/9,5,k))x.fillStyle=R(S(t)*i/5,i/9,k=i/3)

Apr 30 2024 12:39 PM UTC

}// 138/140

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Color ribbon

u/Xen

shexy!
u/lewdev

Reminds me of the Windows 11 background.

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lewdev

remix of d/28630 by u/lewdev

function u(t) {

[o,p]="⚫⚪"
eval(unescape(escape`挮睩摴桼㴰㭸⹳捡汥⠲〬㈰⤻嬳㙥㈬㘰ⰱⰮ〱崮浡瀨⡁Ⱪ⤽㸨䈽琾㵁㽾縨琯䄩㨰ⱴ┽䄬砮晩汬呥硴⡛⸮⹂⹴潓瑲楮木㈩⹰慤却慲琨㜩崮浡瀨愽㹡㴽ㄿ漺瀩⹪潩湠怬〬㤫椪ㄴ⤩⤠`.replace(/u([^D].)/g,'$1%')))

May 1 2024 10:01 PM UTC

}// 139/140

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⏲ Binary Running HD #timer #clock

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lewdev

remix of d/21340 by u/Billedluh

function u(t) {

for(j=k=30;j--;)x.font=(s=2**((2*t+j/3)%9))+"em'",x.fillText(String.fromCodePoint(128640+j),1e3+(.7-j%3)*s*k,s*k)

May 3 2024 9:59 PM UTC

}// 113/140

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🚒🚘🚆🚉🚁 Planes, Trains, Cars, etc (golfed -87b)

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rodrigo.siqueira

remix of d/31696 by u/Agnes

function u(t) {

eval(unescape(escape`󩭯󬬨󪜽󞜻󪜭󛜻󮌮󩭩󫍬󤭥󨽴󚌹󞜪󪜫󝜴󜌬󝜰󜌬󝜰󛌲󜌰󚜩󨼮󬽴󮝬󩜮󨭡󨽫󩽲󫽵󫭤󟜧󫍩󫭥󨝲󛝧󬭡󩍩󩝮󭌨󘼱󝝡󘌰󙜬󘽦󨬷󘌵󝬥󛌣󞌵󝬠󝬶󙜬󘼱󜼵󘌹󞜥󚜧󒭦󫽲󚍗󟜶󝬰󚬡󭌻󥼭󛜻󮌮󩍲󨝷󢝭󨝧󩜨󨼬󛝗󛍗󛌱󞜲󜌫󜬪󥼬󜜴󞌰󛝗󚜩󮌮󩽬󫽢󨝬󠝬󬍨󨜽󛬰󜌵`.replace(/u../g,'')))

May 3 2024 9:51 PM UTC

}// 137/140

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Dwitter Horizon #default #sunset #shadow

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New_Core

function u(t) {

t?x.font="bold 6cm Arial":b=a=.01
t<.5?a=t*60:(a=a,b*=2)
t<.8?a=a:a=2e3
x.fillStyle=R(99,99,99+b,t/9+b)
x.fillText("DWITTER",a+400,700-t*60)

May 3 2024 7:03 PM UTC

}// 140/140

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KilledByAPixel

function u(t) {

n=frame
x.strokeStyle='#'+n
for(j=0;j<50&&n<1e6;)for(x.lineTo(j++*40,1e3-Math.log(i=a=n)*70),n=0;i--;)a%i?0:n+=i
x.beginPath(x.stroke())

May 3 2024 6:55 PM UTC

}// 136/140

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Aliquot Sequences - Log Graph

u/KilledByAPixel

more info: https://youtu.be/OtYKDzXwDEE?si=B8Gg8rbmDLTk…