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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seanleavy

remix of d/1045 by u/seanleavy

function u(t) {

c.width=1920; 
x.fillRect(300, 200, 300, 200)
x.fillRect(300, 400, 1000, 300)
x.arc(75, 75, 10, 3, Math.PI*2, true)

Feb 23 2017 6:40 PM UTC

}// 116/140

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seanleavy

remix of d/1044 by u/seanleavy

function u(t) {

c.width=1920; 
for(i=0;i<9;i++)
{
x.fillRect(300, 200, 300, 200)
x.fillRect(300, 400, 1000, 300)
x.fillRect(300, 700, 300, 200)
}

Feb 23 2017 6:35 PM UTC

}// 129/140

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seanleavy

function u(t) {

c.width=1920; 
for(i=0;i<9;i++)
{
x.fillRect(300, 200, 200, 200)
x.fillRect(300, 400, 1000, 300)
x.fillRect(300, 700, 200, 200)
}

Feb 23 2017 6:34 PM UTC

}// 129/140

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seanleavy

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 */

Feb 23 2017 6:32 PM UTC

}// 122/140

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testy

function u(t) {

window.location = "http://twitter.com"

Feb 22 2017 6:31 PM UTC

}// 38/140

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u/lionleaf

Refuses to load because it's not https, but even with https it's being properly blocked, at least on chrome. Does it work in any of your browsers?
u/donbright

blocked in firefox/ubuntu16

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fufuhaaa

remix of d/758 by u/mvv

function u(t) {

c.width=99;v=x.n=x.n||[4,9,3,5,1];for(i=0;i<5;i++){s=v[i];z=v[i+1];if(s>z&&t%1<.01){t+=.01;v[i]=z;v[i+1]=s}x.fillRect(i*20,-v[i]*10,20,55)}

Feb 22 2017 4:17 AM UTC

}// 139/140

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Bubble sort, somehow in <140 chars.

u/Pol1y@

hello

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pmg

function u(t) {

c.width=600;x.font='30px a';for(i=0;i<20;i++){for(j=0;j<11;j++){x.fillText('◣◤'.substr(((2+2.5*S(i+j+t*6|0))|0)*2,2),i*30,j*30);}}

Feb 22 2017 4:07 AM UTC

}// 130/140

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max

remix of d/1040 by u/max

function u(t) {

x.fillStyle=R(S(t*4)* 255,C(t*4)*255,T(t*4)*255)
x.fillRect(1920/2,1080/2,S(t*2)* 1920/2, S(t) * 1080/2)

Feb 23 2017 6:05 PM UTC

}// 104/140

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max

function u(t) {

c.width=1920; /* clear the canvas */
x.fillRect(1920/2, 1080/2, S(t*2) * 1920/2, S(t) * 1080/2)

Feb 23 2017 6:02 PM UTC

}// 95/140

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donbright

remix of d/479 by u/lionleaf

function u(t) {

c.width=256;for(i=128;i--;)for(j=128;j--;){r=i*i-j*j;g=2*i*j;b=i*i+j*j;x.fillStyle=R(0,(t*32+g)%256,0);x.fillRect(64+i,8+j,1,1)}

Feb 22 2017 3:58 AM UTC

}// 128/140

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Circles and Squares style pseudo fractal inspired by "green quadrance" from Wildberger's chromogeometry (x*x-y*y)

u/donbright

oops, 2*x*y