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

remix of d/17403 by u/rodrigo.siqueira

function u(t) {

for(i=1e3;i--;x.fillStyle=R(Y+Z,Y,X,.01))t<i&&x.fillRect(X=C(z=S(t*i**8)*7+4)*i**1.5,Y=300+S(z/2)*i*t,Z=i*S(t),Z),x.strokeRect(X,Y,Z,Z)

Jan 29 2020 10:56 PM UTC

}// 135/140

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Bleek #art

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Xen

remix of d/17395 by u/trancor

function u(t) {

for(c.width=i=99;i--;)for(k=56;k--;x.fillRect(i,k,1,1))x.fillStyle=R(S(j=(C(k*t)+k*S(t+i/99+S(t*k/9)))*k/13)*i+i,S(j+t)*k*3,t^j)

Jan 29 2020 1:19 PM UTC

}// 128/140

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Abrupt & Corrupt! 128

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WasifBoomz

function u(t) {

c.width=1920
if(t>4){a="D";t-=4;}
else if(t>3)a="C"
else if(t>2)a="B"
else if(t>1)a="A"
x.font='500px times new roman'
x.fillText(a,760,740)

Jan 31 2020 7:51 PM UTC

}// 140/140

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u/iznax

You can try this -- x.fillText("ABCDEFGHIJKLMNOPQRSTUVWXYZ"[t%26|0],760,740)

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trancor

function u(t) {

for(c.width=m=i=99;i--;)for(k=56;k--;)x.fillStyle=R(S(j=(C(~k/m+t)+.5*S(t/5+i/3+S(~k+t*9)))*k/8)*m+m,S(j)*255),x.fillRect(i,k,1,1)

Jan 28 2020 6:25 PM UTC

}// 130/140

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Ziggy Zaggy!

u/tomxor

Awesome! looks like it has DoF
u/Xen

nice style!

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rodrigo.siqueira

remix of d/17307 by u/rodrigo.siqueira

function u(t) {

for(A=a=b=0,i=1e4*(t<3);i--;){r=0|2*Math.random(),
a+=r-a/5+b*S(a*2)/2,
b+=.25-b/3+C(A*2)/4,A=a,
x.fillRect(a*420-280,b*620+180,.3,1)}

Jan 27 2020 2:01 PM UTC

}// 134/140

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Weeds in my garden #plant #fractal

u/joeytwiddle

Pretty! #nature #tree

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KilledByAPixel

function u(t) {

eval(unescape(escape`𭱩𭁨𚁸𚑦𫱲𚁣𛡷𪑤𭁨𯀽𪰽𜀬𬱣𨑬𩐨𞐬𞐩𛁴𬡡𫡳𫁡𭁥𚀹𞐬𝠰𚐬𩡩𫁬𤱴𮑬𩐽𙱲𩑤𙰻𪰼𞐻𬱴𬡯𪱥𚀩𛁲𫱴𨑴𩐨𜐮𜀵𚐩𨡥𩱩𫡐𨑴𪀨𬠽𚁫🀶𚐪𜐲𚠨𮠽𪰫𚰯𜱼𜀩𚐬𩑬𫁩𬁳𩐨𤰨𨐽𝀪𭀫𪰥𜠩𚠴𚡲𛁃𚁡𚐪𬠬𮠿𮠪𜰺𝀸𛁺🱺𚠳𞠱𜠬𜀬𜀬𝰩𛁺𙠦𩡩𫁬𚀩`.replace(/u../g,'')))

Jan 28 2020 8:31 PM UTC

}// 140/140

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Atom ⚛

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katkip

function u(t) {

eval(unescape(escape`𪑦𚀡𭀩𮱘👮𩑷𘁁𭑤𪑯𠱯𫡴𩑸𭀨𚐻𫰽𦀮𨱲𩑡𭁥𣱳𨱩𫁬𨑴𫱲𚀩𞱧👘𛡣𬡥𨑴𩑇𨑩𫠨𚐻𫰮𩡲𩑱𭑥𫡣𮐮𭡡𫁵𩐽𝐲𞀻𩰮𩱡𪑮𛡶𨑬𭑥🐮𜀱𞱯𛡣𫱮𫡥𨱴𚁧𚐮𨱯𫡮𩑣𭀨𦀮𩁥𬱴𪑮𨑴𪑯𫠩𞱯𛡳𭁡𬡴𚀩𞱽𒠠`.replace(/uD./g,'')));

Jan 31 2020 3:50 PM UTC

}// 122/140

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#audio that will make you smile (unconsciously)

u/katkip

#spoiler #annoying
u/Xen

i had 26 things at once and actually wondered why furiously stabbing SPACE didn't stop the noise on my youtube tab......

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mikhama

function u(t) {

c.width=1920;x.font="90px arial black";x.fillText('ТУТ МОГЛА БЫТЬ ВАША РЕКЛАМА!',S(t/0.3)*200+150,600)

Jan 30 2020 3:12 PM UTC

}// 102/140

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u/katkip

It means "Here could be your advertisment"

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Odog8

function u(t) {

s=50;for(f=s;f--+s;)for(g=s;g--+s;)x.fillStyle=R(5e4*(1/(g*g+f*f)+1/((g-s*S(20*t))**2+(f-s*C(15*t))**2))),x.fillRect(10*g+1e3,10*f+600,s,s)

Jan 28 2020 1:48 PM UTC

}// 139/140

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metaballs!

u/Joachim

#metaballs

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Xen

remix of d/17424 by u/yodacoder

function u(t) {

//for(t+=i=w=c.width^=9,x.fillRect(0,0,w,w);i--;x.strokeStyle=R(t,t%99)
)x.lineTo(w/2+C(t*i/5)*5*i,w/4+S(t*i/5)*5*i);
x.stroke()

Jan 31 2020 12:05 PM UTC

}// 128/140

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photosensitive warning!