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) {

eval(unescape(escape`𮀮𨑲𨰨𞐵𜀬𥰽𝐵𜀬𥰯𭀬𘑸𛡢𩑧𪑮𤁡𭁨𚁸𛡦𪑬𫁓𭁹𫁥👒𚁺👗𛑗𛱴𛁴🀵🱺𞠰𛁴🀵🱺𞠰𛁴🀵𙠦𭀾𜠿𮠺𛠰𜐩𚐬𞐩𒡴🀷🱸𛡦𪑬𫁒𩑣𭀨𝠷𝐬𝐲𝐬𥰬𝀹𚐺𮀮𩱬𫱢𨑬𠱯𫑰𫱳𪑴𩑏𬁥𬡡𭁩𫱮🐧𩁥𬱴𪑮𨑴𪑯𫠭𫱵𭀧𒡸𛡦𪑬𫀨𚐻`.replace(/u../g,'')))

Apr 28 2025 2:54 PM UTC

}// 130/140

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Premier Ball #pokemon

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KilledByAPixel

remix of d/33572 by u/KilledByAPixel

function u(t) {

x.fillStyle=t&1?'#fff':R()
for(i=40;i--;x.drawImage(c,X=i*55-T,Y=j%2e3-T,T,T,X+.5+S(j*j)|0,Y+j%3,T,T=700))x.fillRect(i,0,j=i**3.3+t|0,1)

Apr 27 2025 4:00 PM UTC

}// 136/140

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Mini Melter

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BriSeven

remix of d/17787 by u/BriSeven

function u(t) {

r=t?r:X=Y=800,W=2e3,H=1e3,x.fillStyle=`hsl(${99*t} 99%50%`,x.fillRect(X+=5*S(r+=S((t+X)*r)/2),Y+=5*C(r),T=9*S(t),T),X=(X%W+W)%W,Y=(Y%H+H)%H

Apr 28 2025 3:25 AM UTC

}// 139/140

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Ticker Tape Parade

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Axioplase

function u(t) {

X=Y=30*t;
X+=Math.random()<.5?-t*S(t):t*C(t);
Y+=Math.random()<.5?-t*C(t):t*S(t);
x.fillRect(X,Y,3,3)

Apr 29 2025 2:19 AM UTC

}// 101/140

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Hair

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rodrigo.siqueira

remix of d/33655 by u/rodrigo.siqueira

function u(t) {

c.style.filter=`invert()`
for(i=3e4;i--;x.fillRect(960+X/Z,560-Y/Z,.1,t<3))r=S(i*i/t)/S(i*i)**t,X=S(k=i/3)*840,Y=C(k)*830,Z=C(S(i/4))*4-.4/r

Apr 27 2025 6:27 PM UTC

}// 140/140

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Trefoil Knot emanation

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Axioplase

remix of d/33674 by u/Axioplase

function u(t) {

d=50*Math.floor((9+t)/9)
X=S(t+99*C(t))*d
Y=C(t+99*S(t))*d
x.save()
x.translate(960, 540)
x.rotate(d)
x.fillRect(X,Y,9,9)
x.restore()

Apr 29 2025 9:57 PM UTC

}// 133/140

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Axioplase

function u(t) {

d=50*Math.floor((10+t)/9)
X=S(t+99*C(t))*d
Y=C(t+99*S(t))*d
x.fillRect(X+960,Y+540,10,10)

Apr 29 2025 6:29 PM UTC

}// 89/140

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Nested

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warbino

remix of d/33657 by u/KilledByAPixel

function u(t) {

x.fillStyle=`hsl(${t*99} 99%50%`
for(i=40;i--;x.drawImage(c,X=i*1000-T,Y=j%2e3+T,T,T,X*S(j),Y-j*2,T,T=900))x.fillRect(i*T,1000,j=i**3.1-t,1)

Apr 28 2025 6:29 PM UTC

}// 140/140

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broken tv screen (kinda)

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BriSeven

remix of d/17807 by u/BriSeven

function u(t) {

eval(unescape(escape`瑼簨愽䅲牡礨㕥㐩⹦楬氨㘮㌩⤬砮獴牯步却祬攽恨獬⠤笹㤪瑽‹㤥㔰╠ⱸ⹳瑲潫攨湥眠偡瑨㉄⡠䴹․笹㤪瑽池⭡⹭慰⡡㴾䌨愩⬢•⭓⡡⤩⤩ⱡ㵡⹭慰⠨愬攩㴾愫匨琪攪愩⼹⤻`.replace(/u([^D].)/g,'$1%')))

Apr 28 2025 6:33 AM UTC

}// 127/140

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Topological Mutation

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thenize

remix of d/21071 by u/rodrigo.siqueira

function u(t) {

for(c.width|=i=q=r=s=1;i<400;x.lineTo(960+45*q+K,540+K*r+K*S(q+t*7)*60),i+=.1)r+=q*(K=30-s)/100,s+=q*r/9-s/40,q+=r-q/8;x.stroke()

Apr 25 2025 3:08 PM UTC

}// 129/140

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thought this was a cool one and just changed it up a little