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.

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spaceman_blanc

remix of d/12383 by u/DataMeta

function u(t) {

c.style.background=R();for(i=325;i--;)x.fillStyle=`hsla(${i},99%,50%,.02)`,k=912*S(t/i),x.fillRect(960+k*1.8*T(i^t),524+k/C(i),i/9+9,i/9+9)

Feb 19 2019 8:49 AM UTC

}// 139/140

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2001

u/geb

#background
u/spaceman_blanc

To any remixers, you can drop the "c.style.background=R();" from the start and you will have 24 chars to play with.
u/katkip

Nice
u/katkip

Not really u/spaceman, on upload, the canvas will be reseted to white
u/spaceman_blanc

yeah youre right, didnt realise that. I mean you could still do something cool with 24 chars and white back ground i guess

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corporateanon

function u(t) {

x.clearRect(0,0,2e3,2e3);
for(b=0;b<20;b+=1){
m=50+50*C(b+t*9.9)
x.fillRect(b*100,500+C(b+t*10)*200,m,m);
}

Feb 21 2019 5:56 AM UTC

}// 107/140

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u/hells-fargo

the spring is twisting like a barber pole, i like it

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katkip

function u(t) {

eval(unescape(escape`焽㌮ㄴ⼨㈪瑼〩㭣⹷楤瑨帽〻砮扥杩湐慴栨⤻景爨椽〻椼㄰㠻椫⬩⁸⹬楮敔漨㤶〫䌨椪焫琯焩⨴㐰ⰸ㐰⭓⡩⩱⭴⽱⤪㄰〬㈰ⰲ〩ⱸ⹬楮敔漨㤶〫䌨椪焫琯焩⨴㐰ⰲ㐰⭓⡩⩱⭴⽱⤪㄰〬㈰ⰲ〩ⱸ⹳瑲潫攨⤻`.replace(/u(..)/g,"$1%")))

Feb 22 2019 7:30 PM UTC

}// 137/140

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u/13thptr

Basic reduction to 140 (a little bit different in the beginning):q=1.57/~~t;with(x)for(c.width^=beginPath(),i=108;i--;)lineTo(o=(960+C(v=i*q+t/q)*440),840+S(v)*99,l=20,l),lineTo(o,240+S(v)*99,l,l),stroke()

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Gabe

function u(t) {

for(x.fillRect(3,3,i=3e3,i);Q=S(--i*i);x.clearRect(990+150*(S(b)*4+S(i+t)*Q),540+150*(C(i*i)-(t%4>2?T(b+t):S(b+t))),4,3))b=i%6+t+(t%2>1?0:i)

Feb 22 2019 5:32 PM UTC

}// 140/140

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remix

u/katkip

Someone ban

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Gabe

function u(t) {

t||(a=b=0)
if(t<6)for(i=4e2;i--;)x.fillStyle=`hsl(7,50%,${S(t*4)*45}%,10%)`,x.fillRect(980+b*S(a),540+b*C(a),1,1),a+=2*C(2.7*a)-t/8,b+=.0004

Feb 22 2019 5:29 PM UTC

}// 140/140

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remix

u/katkip

???? ban

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Gabe

function u(t) {

t||(a=b=0)
for(i=5e3;i--;)x.fillStyle=`hsl(90,45%,${S(t*5)*60}%)`,x.fillRect(970+b*S(a*1.8),540-b*C(a*2),1,2),a+=1.8*C(2.7*a)+C(t/4),b+=.001

Feb 22 2019 4:31 PM UTC

}// 140/140

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awsome right

u/Gabe

remix

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WasifBoomz

function u(t) {

a=t*50
x.fillRect(a,a,a*50,a*50)
x.fillStyle=R(a/1.8,a/1.2,a)

Feb 22 2019 4:26 PM UTC

}// 61/140

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WasifBoomz

function u(t) {

a=t*99
x.fillRect(a,a,50,a/9)
x.fillStyle=R(a/3,Math.random()*255)
x.strokeRect(a*-1+1920,a,a/9,50)
x.strokeStyle=R(0,Math.random()*255,a/3)

Feb 22 2019 4:23 PM UTC

}// 140/140

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u/Gabe

it´s a remix
u/WasifBoomz

REALLY

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WasifBoomz

remix of d/12471 by u/WasifBoomz

function u(t) {

if(t==0){b=0}if(b>9){b=0 
x.fillStyle=R(Math.random()*255,Math.random()*255,Math.random()*255)}else{b++}a=900000*t
x.fill(x.arc(a,a,a,a,a))

Feb 22 2019 3:23 PM UTC

}// 140/140

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u/Gabe

remix

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WasifBoomz

function u(t) {

if(t==0){b=0}
if(b>9){b=0 
x.fillStyle=R(Math.random()*255,Math.random()*255,Math.random()*255)} 
else{b++}
a=90*t
x.fill(x.arc(a,a,a,a,a))

Feb 22 2019 3:13 PM UTC

}// 140/140

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u/Gabe

remix