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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stephanegeorget

function u(t) {

t=(p=10)*(q=255)+t;for(i=190;i--;)for(j=120;j--;)x.fillStyle=R(C(i/t*q)*S(t%j)*q,S(j/t*.5)*T(t%i)*q,T(j*i*t/q/p)*q),
x.fillRect(i*p,j*p,p,p)

May 8 2022 10:05 PM UTC

}// 140/140

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Red, Green and Blue decided not to mix

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ArthurThuczsec

remix of d/25460 by u/CaptainMeat

function u(t) {

for(i=2e3;i--;x.fillRect(i,(t*99+C(i&i*i)*i|0)%1e3,19,19))x.globalCompositeOperation="xor"

May 8 2022 12:07 PM UTC

}// 90/140

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u/CaptainMeat

thats rly cool looking, im currently in love with the tv static noise effect

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taupelink

remix of d/25413 by u/taupelink

function u(t) {

for(k=229,m=t?0:6e3;m--;x.fill())x.beginPath(x.fillStyle=R(r=m**.5,i=m/6%k,i%r*5,i/r/5)),x.arc(m%9*k+r*C(m),(m/11|0)%5*k+r*S(m),i/7,m-2,m+2)

May 7 2022 2:26 AM UTC

}// 140/140

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d/25459

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CaptainMeat

remix of d/25418 by u/CaptainMeat

function u(t) {

c.width=1920;x.globalCompositeOperation="xor";for(i=1920;i>0;i--)x.fillRect(i,S(i+t)*500+540,25,25)

May 6 2022 2:51 PM UTC

}// 99/140

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This operation makes everything look cool

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guhcoder

function u(t) {

c.width=1920 // clear the canvas
for(i=0;i<1000;i++)
x.fillRect(i*3+S(t)*1000,0,1,10000) // draw 50x200 rects

May 9 2022 2:42 AM UTC

}// 109/140

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Ow on the eyes

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ArthurThuczsec

remix of d/25433 by u/CaptainMeat

function u(t) {

t?A.shift(A.push(A[0]+A[1])):A=[1,1]
throw `Gold ${A[0]/A[1]+1}`

May 5 2022 5:34 PM UTC

}// 64/140

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u/pavel

throw Gold ${(b=t?a+(a=b):a=1)/a}
u/pavel

throw 'Gold '+(u=1+1/u||1)

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Ghoust

function u(t) {

t?0:a=""
a+=String.fromCharCode(Math.random()*9**4)
a.length>399?a=a.substring(1):0
document.querySelectorAll("body")[0].innerHTML=a

May 6 2022 6:07 PM UTC

}// 132/140

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CaptainMeat

remix of d/25417 by u/CaptainMeat

function u(t) {

p=()=>{return Math.random()};x.globalCompositeOperation="xor";x.fillRect(p()*1920,p()*1080,p()*100,p()*100)

May 6 2022 3:44 PM UTC

}// 107/140

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CaptainMeat

remix of d/25445 by u/CaptainMeat

function u(t) {

z=y=0;g=c.width|=0
x.globalCompositeOperation="xor"
for(;z<g;z++)
for(;y<z;y++)
x.fillRect(z^y*C(t)+880,T(t)*z^y+440,100,100)

May 6 2022 2:49 PM UTC

}// 125/140

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KilledByAPixel

function u(t) {

eval(unescape(escape`󬬽󬬽󟬳󜌰󚽍󨝴󪌮󬭡󫭤󫽭󚌩󚭲󒭘󟝲󚌱󩜳󚜊󥼽󬬨󞜹󚜊󢌽󬬨󝌰󜌩󒭦󫽲󚍩󟜲󞽴󟌮󜌴󙬦󪜭󛜻󮌮󩭩󫍬󤭥󨽴󚌮󛬮󭌿󦽘󛍴󚬲󩜴󚼳󝬰󛍩󟽗󞬲󩜳󛍩󟼭󢌺󛜹󞝝󞭛󜌬󪜪󝜴󜌬󜭥󜼬󝜴󜍝󚜩󮌮󩭩󫍬󤽴󮝬󩜽󨍨󬽬󚌤󮽲󚌱󩜳󚝽󛌤󮽲󚌶󜌰󚜯󞝽󙜬󙍻󘝴󚬵󜍽󙜬󙍻󪜫󛬵󯝠`.replace(/u../g,'')))

May 5 2022 4:16 PM UTC

}// 140/140

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Demake of Relics by Tom Furse https://8x8.teztok.com/user/tz1aMaLTdWUuNxgy…

u/Joachim

nice.