Dwitter

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.

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lcfrdvx

function u(t) {

for(i=0;i<60;i++){x.setTransform(1,0,C(t*0.5%Math.PI),1,0,C(i+t*10)*10);x.fillStyle=`hsl(${t*10},90%,60%)`;x.fillRect(860,300+i*10,10,10)}

Apr 25 2018 8:38 AM UTC

}// 138/140

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Barth

function u(t) {

c.onmousemove=e=>m=e
x.font="200px Arial";x.fillText("•",m.x*3.379-79/2,m.y*3.379+150/2);x.fillStyle=`hsl(${t*250},100%,75%`

Apr 25 2018 8:37 AM UTC

}// 125/140

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Barth: #draw #paint

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Barth

function u(t) {

for(i=0;i<Math.floor(t*5);i++)for(j=0;j<20;j++)
x.fillRect(500/(i+1)+1000,500/(j+1)+100,500/(j+1),500/(i+1))

Apr 25 2018 8:04 AM UTC

}// 111/140

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Barth: easy #fractal

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CocoMeister

function u(t) {

for(x.fillStyle=R(),x.fillRect(0,0,1920,1080),i=50*t;i>0;i-=9)x.fillStyle=R(70,0,i),x.fillRect(4*i+920,i,9,3*i),x.fillRect(4*-i+920,i,9,3*i)

Apr 25 2018 7:58 AM UTC

}// 140/140

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CocoMeister: #retro #retrowave

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Barth

function u(t) {

y=t*100;for(i=0;i<100;i++)x.fillRect(S(t+i)*100+(50*i)-100,y%1080,5,5);x.fillStyle=`hsl(${i+t*250},100%,75%`;

Apr 25 2018 7:36 AM UTC

}// 109/140

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Barth

function u(t) {

for(i=0;i<100;i++)x.fillRect(T(C(t+i+Math.PI))*300+900,S(C(t)+i+Math.PI)*300+600,10,10);x.fillStyle=`hsl(${i+t*250},100%,75%`

Apr 25 2018 7:35 AM UTC

}// 125/140

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lcfrdvx

function u(t) {

var l=200;for(i=0;i<l;i++){x.fillStyle=`hsl(${t*100},90%,60%)`;var a=(Math.PI*2/l)*i;x.fillRect(960+C(a+t)*400,540+S(a+t)*C(a*2)*400,10,10)}

Apr 25 2018 7:30 AM UTC

}// 140/140

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CocoMeister

function u(t) {

c.width=1920
for(i=0;i<1920;i+=10){
x.fillStyle='hsl('+ S(i*9+S(t/2)*10)*50+',90%,50%)'
x.fillRect(i,S(i*9+S(t/2)*10)*200+600,50,50)
}

Apr 25 2018 5:23 AM UTC

}// 138/140

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anthonylewis

remix of d/7730 by u/anthonylewis

function u(t) {

for(w=c.width|=i=24;i--;)x.strokeStyle='#00c',x.beginPath(),
x.arc(i*3*S(t*i)+960,i*3*C(t*i)+540,Math.abs(w/(i-t%2)+1),0,7),
x.stroke()

Apr 25 2018 1:16 AM UTC

}// 137/140

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anthonylewis: Ripples and swirls

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MrM@_S

function u(t) {

eval(unescape(escape`潮摲慧敮瑥爽潮摲慧潶敲㵥㴾攮灲敶敮瑄敦慵汴⡯湤牯瀽攽㹻景爨敞㵡㵛⸮⹥⹤慴慔牡湳晥爮来瑄慴慠瑥硴恝⹭慰⡥㴾攮捨慲䍯摥䅴⡫㴢∩⹴潓瑲楮木ㄶ⤩㭡孥崻⥫⬽∥產⭡孥⬫崫慛攫⭝㭴桲潷⁵湥獣慰攨欩紩`.replace(/u(..)/g,"$1%")))

Apr 24 2018 10:15 PM UTC

}// 140/140

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MrM@_S: [dwitter character compressor V 1.0] Step 1: drag and drop a program (with an even character count) in to compress, Step 2: look in your browser's developer tool for an error with seemingly random text, Step 3: copy that and paste it in place of my compressed program. {Please note that the largest program you can have is a length of 184}

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MrM@_S: #tool
MrM@_S: also it does not function well with new lines and it can only compress ascii
MrM@_S: #interactive