i'm a newcomer, but codegolf community … by metamero

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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metamero

function u(t) {

𣐮=new TextEncoder('utf-16').encode(code)[l='length']
𪁲=code[l]
𩰮=Array.from(code)[l]
throw 𣐮+'B ⇄'+𪁲+' units ⇄'+𩰮+' chars\n🐢💩'+'௸'[l]+'𣐮'[l]

Jan 18 2019 1:51 PM UTC

}// 140/140

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i'm a newcomer, but codegolf community must decide whether they like to count code size in UTF-16 characters, UTF-16 code units or bytes (or bits, since b and B are different units)

Show more comments…
u/metamero

#bug
u/f8f82804

I'm personally against exploiting a bug, so I prefer counting 16-bit chars.
u/metamero

u/f8f82804 unicode chars can be 16 or 32-bit (only). this bug is on front, not on server. or stated other way, this bug is on codegolf community policies.
u/metamero

speaking about bugs, this code actually counts UTF-8 chars (as they are represented in the page/editor). one can see this matter with the ௸ symbol (it's 2B long in UTF-16 but 3B in UTF-8). parameter 'utf-16' in TextEncoder is obsolete, see this note here https://developer.mozilla.org/en-US/docs/Web…
u/metamero

d/11906 is my method to count UTF-16 chars
u/metamero

*** this code actually counts bytes of the string encoded with UTF-8 (html context). d/11906 counts bytes of the string encoded with UTF-16 (javascript context). both count Unicode chars (or *code points*) right with Array.from(code).length. this is different from counting *code units* (16-bit unsigned elements).


      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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