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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warbino

remix of d/33610 by u/BriSeven

function u(t) {

x.font="7em arial";
x.fillStyle = `hsl(${t*50}, 70%, 60%)`;
x.fillText('"i like apples and bananansd"',150,650,);

Apr 23 2025 6:13 PM UTC

}// 113/140

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thenize

function u(t) {

c.width*=1
for(i=19;i--;x.setTransform(C(n=t+C(t)*i/3)*5,-S(n),S(n)*2,C(n),960,99+i*70),x.font='5cm a')x.fillText([...'🤯🤓🥳😭👽 '][i%6],-15,70)

Apr 23 2025 6:08 PM UTC

}// 140/140

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i like aliens 👽

u/warbino

my motion sickness!
u/lewdev

Remix of d/33552

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Axioplase

remix of d/33638 by u/Axioplase

function u(t) {

for(i=2e4;i--;){r=S(t)*2e3,X=r*C(t*t),Y=r*S(t*t),Z=(C(Math.floor(1*X/i+1*Y/i)))*t*t,a=50/t*(t<3.1),x.fillRect(960+Y/Z,X/Z+540,a,a)}

Apr 23 2025 2:15 AM UTC

}// 131/140

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Twirl

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Xen

function u(t) {

for(i=9+(t/2|0);i--;)t?x.clearRect(960+C(t*99+(i*t/7))*t*19,t*(19+S(t)),.7,-t):x.fillRect(0,0,2e3,2e3)

Apr 22 2025 3:10 PM UTC

}// 102/140

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Slow Art Play

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Axioplase

function u(t) {

for(i=3e4;i--;){Y=Math.floor((i-2e4)/(t*t));X=i%960-480;Z=10;if((X*X/Z)+(Y*Y/Z)<100*100)x.fillRect(960+Y,540+X,10,10)}

Apr 23 2025 1:17 PM UTC

}// 118/140

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DazeWare

remix of d/33632 by u/DazeWare

function u(t) {

for(i=0;i<9;i++)
{
x.font="6em arial";
x.fillStyle = `hsl(${t*99^i}, 100%, 50%)`;
x.fillText("O",t*99,600+t*40*S(t),t*99);
}

Apr 22 2025 3:38 AM UTC

}// 124/140

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DazeWare

function u(t) {

for(i=0;i<99;i++)
{
r=Math.random()
x.font="6em arial";
x.fillStyle = `hsl(${t*999}, 100%, 50%)`;
x.fillText("O",t*99,600+t*40*S(t),t*99);
}

Apr 22 2025 3:28 AM UTC

}// 140/140

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Axioplase

remix of d/33637 by u/rodrigo.siqueira

function u(t) {

for(i=2e4;i--;){r=2e3,X=r*C(t*10),Y=r*S(t*10),Z=(C(Math.floor(1*X/i+1*Y/i)))*t*t,a=5/t*(t<6.8)*(i/2e3),x.fillRect(960+Y/Z,X/Z+540,a,a)}

Apr 23 2025 2:11 AM UTC

}// 135/140

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skeletonNatte

function u(t) {

!t?n=~~(Math.random(x.font='89px p')*99):x.fillText(`Why was ${n} afraid of ${n+1}?`,0,99)
x.fillText(`Because ${n+1} ${n+2} ${n+3}!`,0,190)

Apr 21 2025 3:36 PM UTC

}// 140/140

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Joke Generator

u/cantelope

*slaps knee*
u/lewdev

I was so confused because I saw this using the correct numbers and Math.random. I was just very lucky.

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BriSeven

function u(t) {

eval(unescape(escape`吽㘰⩴簰㭃㵔┵㭒㵔⼵簰㭚㵒┲㭩昨ⅴ⥡㵛崻䄽䌪㈫娻䈽䌪㈫⅚㭡孁崽㄰㐹㔾㸨慛䈭㉝㰼㍼慛䉝㰼㉼慛䄭㉝㰼ㅼ⡍慴栮牡湤潭⠩⨲簰⤩☱㭸⹦楬汒散琨㉥㌭別㔵⨹Ⱘ㔭䌩⨹⬨刯㔵簰⤪㔵ⰹ⩡孁崬㤩㬠`.replace(/u([^D].)/g,'$1%')))

Apr 20 2025 3:14 PM UTC

}// 138/140

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Right to left square kufic-like

u/BriSeven

10495 is a magic number containing the rules; no diagonals, no solid 2x2 blocks