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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Xen

function u(t) {

for(i=2e3;i--;x.fillRect(i,0,2,9))x.fillStyle=`hsl(${i/5+C(i+t*49)*99},69%,50%)`;x.drawImage(c,0,9)

Nov 2 2019 4:03 PM UTC

}// 99/140

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LSD #trippy #rainbow

u/katkip

#xweet

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rodrigo.siqueira

remix of d/16396 by u/KilledByAPixel

function u(t) {

T=t%2
for(i=340;--i;x.fillRect(960+S(m**3)*q*T,540+T*C(m*m+t/8)*q,m/8,m/8))m=i+120*T,q=1e5/i,x.fillStyle=R(T*i*i/140,T*i*i/340)

Nov 1 2019 8:09 PM UTC

}// 127/140

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Volcano explosions from above 🌋

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joeytwiddle

remix of d/16396 by u/KilledByAPixel

function u(t) {

x.globalAlpha=.2;for(i=340;--i;x.fillRect(960+S(m*m)*q,540+C(m*m)*q,50,50))m=i+120*t,q=5e4/i,x.fillStyle=R(i*i/50,i*i/84,i*i/300)

Nov 1 2019 2:44 PM UTC

}// 129/140

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Supernova variation KBAP-201911011455

u/joeytwiddle

Replace 50,50 with s=60*S(i+t),s to vary brush size

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DataMeta

remix of d/16202 by u/DataMeta

function u(t) {

r=Math.random;with(x)for(j=560;j--;)fillStyle=R(a=255-r()/r()/r(),a/4,a/(3+S(t)),1-a*.0036),fillRect(64*(j%31),64*(j/31|0),d=86*r(),d)

Nov 2 2019 11:20 PM UTC

}// 134/140

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joeytwiddle

remix of d/16368 by u/tomxor

function u(t) {

throw`  __\n/__/\\\n\\__\\/`

Nov 1 2019 4:50 AM UTC

}// 28/140

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28 byte cube yo!

Show more comments…
u/joeytwiddle

(works a bit better with line-height: 1)
u/KilledByAPixel

Nice! ■ <- one char, it is a cube from the side ;)
u/katkip

#throw #text clever
u/DataMeta

Haha!
u/aleamb

lol!
u/joeytwiddle

This was my entry when everyone was golfing their #cube

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DaSpider

remix of d/16502 by u/DaSpider

function u(t) {

eval(unescape(escape(`琿漮癡汵攫㵓瑲楮朮晲潭䍯摥偯楮琨㜷㠲㐫䵡瑨⹲慮摯洨⤪㄰㜱簰⤺挮潵瑥版呍䰽✼瑥硴慲敡⁩搽漠牯睳㴸〠捯汳㴹㤠獴祬攽≦潮琭獩穥㨲敭㬢㸼⽴數瑡牥愾✠`).replace(/u(..)/g,"$1%")))

Nov 4 2019 10:27 AM UTC

}// 120/140

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Hieroglyphs...

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katkip

function u(t) {

c.style.transform=`rotate3d(${t*99},${t*39},${t*29},${t*99}deg)`;x.font='22cm"';x.fillText(`❒`,200,700)

Nov 1 2019 8:00 PM UTC

}// 103/140

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yeah... i... best #cube

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TotocheBro

function u(t) {

for(i=0;i<1500;
x.fillRect(i?940+i*S(F=(t/50)+i+S((t/200)*i)):0,
i?540+(1*i*C(F)+10/i):0,K=i++?S(i)*8:2000,K))
x.fillStyle=R(.25,i,i)

Oct 31 2019 6:26 AM UTC

}// 133/140

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Weeeeeooooo

u/joeytwiddle

#spiral

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f8f82804

remix of d/16419 by u/RealPeha

function u(t) {

t?c.width^=f=_=>"⚀⚁⚂⚃⚄⚅"[6*Math.random()|0]:s=t;onclick=_=>s=t+1;x.font='48em"';with(x)fillText(t>s?v=f()+f():v,550,7e2)

Nov 1 2019 9:42 PM UTC

}// 120/140

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Click to roll a pair of #dice

u/joeytwiddle

#game I got a pair of twos! Is that good?

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bencoveney

remix of d/16488 by u/bencoveney

function u(t) {

x.font="4em monospace"
u+=i="";
u.split`
`.map(l=>x.fillText(l,i++%5==0||99,i*99))

Nov 2 2019 2:29 PM UTC

}// 82/140

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more #quine crunching