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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jasnh

function u(t) {

c.outerHTML=`<a href="javascript:f=()=>{document.querySelector('body').style.backgroundColor='red'};f()">h</a>`

Aug 28 2022 2:42 PM UTC

}// 111/140

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favelets are great

u/jasnh

you can drag the h into your bookmark bar (if existent) or side tray (if open) and can then click it anywhere!

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TGY

remix of d/14392 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`󩭯󬬨󪬽󜌻󪬫󚼼󜬹󞼩󩭯󬬨󦬽󪜽󜜹󜬻󪜭󛜻󢬽󪬪󝌭󦬬󦜽󪜯󜜷󯌰󛍸󛭦󪝬󫍒󩝣󭌨󪜥󜜷󚬲󚭚󚬱󛬱󚽲󚽊󛜨󦜦󜜩󚭚󛍙󚭚󚬱󛬱󝜫󬬫󢬬󜬪󦬬󦬩󚝸󛭦󪝬󫍓󭍹󫍥󟝒󚍪󚬪󜼯󜜰󞜬󤜽󝼰󛝩󛍑󚜬󬬽󪜽󟜵󝌦󙬳󜌪󤼨󭌩`.replace(/u../g,'')))

Aug 24 2022 9:02 PM UTC

}// 120/140

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enter diagon alley here

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pasghetti

remix of d/26021 by u/pasghetti

function u(t) {

for(z=c.width=960,f=Math.random;--z;x.fillRect(g*79+480,h*79+270,4,4),R[z]=g+h/99,R[-z]=h+(h-g*g*h-3*g)/297)g=R[z]||f()*8-4,h=R[-z]||f()*8-4

Aug 25 2022 10:07 AM UTC

}// 140/140

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golfed limit cycle

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ArthurThuczsec

remix of d/10084 by u/ETHproductions

function u(t) {

for(i=1e4,c.width=99,r=R,R=n=>~-r[i+n]-~r[i-n];i--;(R[i]=p+new Date%3/t>=3-r[i]&p<4)&&x.fillRect(i>>6,i%64,1,1))p=R(1)+R(63)+R(64)+R(65)

Aug 25 2022 3:14 PM UTC

}// 136/140

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slight golf

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danny@hille.dk

function u(t) {

for(i=2e3;i--;)x.fillRect(i,t*60,.1,S(t-i/64)*8&C(t+i/68)*8)

Aug 24 2022 7:27 PM UTC

}// 60/140

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60 byte diamonds!

u/ximavus

Nice!

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DazeWare

remix of d/26038 by u/DazeWare

function u(t) {

c.width=99
for(X=0;X<99;X++){
for(Y=0;Y<99;Y++){
x.fillStyle=R(q=99*Math.random(),q>>X+Y+t*99)
x.fillRect(X,Y,1,1)}}

Aug 26 2022 3:42 AM UTC

}// 118/140

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DazeWare

function u(t) {

c.width=99
for(X=0;X<99;X++){
for(Y=0;Y<99;Y++){
x.fillStyle=R(t^X*t+t*S(t*2)*Y^X,X*Math.random(t))
x.fillRect(X,Y,1,1)}}

Aug 26 2022 3:37 AM UTC

}// 123/140

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ArthurThuczsec

function u(t) {

for(c.width=2e3+S(t)*300,i=9;i--;)x.fillRect(400+i*99,400,50,200)

Aug 25 2022 3:32 PM UTC

}// 65/140

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test

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pasghetti

remix of d/10084 by u/ETHproductions

function u(t) {

a=8
for(i=8192,c.width=128,r=R,R=n=>~-r[i+n]-~r[i-n];i--;(R[i]=(t?p:p+i**a%11)>=6+~r[i])&&x.fillRect(i>>6,i%64,1,1))p=R(1)+R(63)+R(64)+R(65)

Aug 25 2022 7:47 AM UTC

}// 140/140

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blob generator

u/pasghetti

try changing a to make new blobs
u/pasghetti

also check out the original because the golfing in it is insane

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DazeWare

remix of d/26007 by u/rodrigo.siqueira

function u(t) {

for(x.fillRect(0,0,w=2e3,w),i=1e4;i--;x.clearRect(960+S(p=i*T(t))/(Z=S(i)/340),540+C(p*t/p*.75)/Z,1,1))x.globalAlpha=.04

Aug 24 2022 1:43 AM UTC

}// 120/140

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Room scan