Minimizing to 140 characters was far ha… by DNA

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.

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DNA

function u(t) {

c.width=1920;j=Math.PI/45;for(i=b=540;i++<630;){x.fillRect(b,b+S(t)*300,b,9);x.translate(960-960*C(j)+b*S(j),b-b*C(j)-960*S(j));x.rotate(j)}

Dec 27 2017 3:32 AM UTC

}// 140/140

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Minimizing to 140 characters was far harder than it should've been.

u/iverjo

If you look at some of the other well-golfed dweets, you'll pick up some tricks that can help in the byte-shaving process
u/iverjo

c.width+=0;for(i=b=540;i++<630;)x.fillRect(b,b+S(t)*300,b,9),x.translate(960-960*C(j=.0698)+b*S(j),b-b*C(j)-960*S(j)),x.rotate(j)


      u(t) is called 60 times per second.
      t: elapsed time in seconds.
      c: A 1920x1080 canvas.
      x: A 2D context for that canvas.
      S: Math.sin
      C: Math.cos
      T: Math.tan
      R: Generates rgba-strings, ex.: R(255, 255, 255, 0.5)

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