Top dweets by u/NiVZ

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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NiVZ

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪀽𜐹𜠰𞱤👛𜰱𝐹𞐬𜠵𝰵𜐬𜠹𝠷𜐬𜠹𝠴𝰬𜠳𝀹𝰬𜰱𜐸𜰬𜰱𜠱𝐬𜠹𜠵𝰬𜰱𝰲𝰬𜰱𝠹𝑝𞱦𫱲𚁩🐰𞱩🀱𝐻𪐫𚰩𮱩𩠨𩁛𣑡𭁨𛡦𫁯𫱲𚁴𙐱𜀩𧐦𜐼🀱𝀭𪐩𮱸𛡦𪑬𫁒𩑣𭀨𞀷𜀫𚁩𙐳𚠶𜀩𛀴𜠰𚰨𣑡𭁨𛡦𫁯𫱲𚁩𛰳𚐪𝠰𚐬𝠰𛀶𜀩𯑽`.replace(/u../g,'')))

Mar 6 2026 12:36 PM UTC

}// 135/140

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LECO Font Count 10 Seconds

Show more comments…
u/NiVZ

My first dweet. Using binary & bitshifting to display 3x5 font
u/cantelope

#amazing
u/tomxor

Great first dweet, I love bitpacking.
u/dee-gomma

Very good!
u/dee-gomma

You can squeeze it under 140 bytes with some tricks (need to reverse bits): for(x.reset(i=15);i--;)x.fillRect(870+i%3*60,60*(0|i/3),60,[31599,25751,29671,29647,23497,31183,31215,29257,31727,31695][0|t%10]&1<<i&&60)
u/ximavus

I love it
u/NiVZ

Thanks everyone. I love how one idea on here sparks others. Particularly impressed that KilledByAPixel got a full Leco digital clock working

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NiVZ

remix of d/36128 by u/NiVZ

function u(t) {

p='🌞🟠🔘🌍🔴🟤🪐🟢🔵';eval(unescape(escape`𮀮𩡩𫁬𤡥𨱴𚀰𛀰𛀱𩐴𛀱𩐴𚐻𩠽𚁲𛁡𚐽🡛𬠪𠰨𨐩𚰹𝠰𛁲𚡓𚁡𚐫𝐴𜁝𞱦𫱲𚁩🐰𞱩🀹𞱩𚰫𚑻𪠽𩠨𪐪𝠲𛁴𛰸𚠨𜐰𛑩𚐩𞱸𛡦𫱮𭀽𘠵𜁰𮀠𠐢𞱸𛡦𪑬𫁔𩑸𭀨𬀮𬱵𨡳𭁲𪑮𩰨𪐪𜠬𪐪𜠫𜠩𛁪𦰰𧐬𪡛𜑝𚑽`.replace(/u../g,'')))

Aug 22 2026 10:23 AM UTC

}// 135/140

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Thanks to u/cantelope & u/tomxor for their suggestions with compression :)

u/cantelope

<3

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NiVZ

function u(t) {

eval(unescape(escape`𮀮𩡩𫁬𤡥𨱴𚀰𛀰𛀱𩐴𛀱𩐴𚐻𬀽𦰢𧁵𮰱𡠳𜑅𯐢𛀢𧁵𮰱𡠵𜰴𯐢𛀢𧁵𮰱𡠳𜁄𯐢𛀢𧁵𮰱𡡁𞐰𯐢𧐻𩠽𚁲𛁡𚐽🡛𬠪𠰨𨐩𚰹𝠰𛁲𚡓𚁡𚐫𝐴𜁝𞱦𫱲𚁩🐰𞱩🀴𞱩𚰫𚑻𪠽𩠨𪐪𜐲𜀬𪐯𜐲𚱴𛰲𜀪𪐪𝠩𞱸𛡦𫱮𭀽𘠵𜁰𮀠𠐢𞱸𛡦𪑬𫁔𩑸𭀨𬁛𪑝𛁪𦰰𧐬𪡛𜑝𚑽`.replace(/u../g,'')))

Aug 18 2026 12:35 PM UTC

}// 140/140

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Mini Solar System

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u/NiVZ

Can anyone tell me how to compress unicode emoji chars please?
u/cantelope

most of the compression techniques involve converting common (codes 0 - 255) ASCII to unicode, so you have a problem with embedding higher codes or emojis that use multiple higher codes. Here's one approach: https://dwitter.net/d/36129
u/NiVZ

Thanks. I think I used the same approach you did. I did try having a look at storing the emoji values as hex (with and without the repeating 0x1F) but adding the String.fromCodePoint() added more characters than it saved.
u/cantelope

i mean, the main thing is eval
u/tomxor

I've often place them in separate "uncompressed" variable e.g. s='🌞🔴🌍🪐';eval(unesc... then use s inside the compressed code.
u/NiVZ

u/tomxor Thank you that worked! I now have 8 planets :) https://www.dwitter.net/d/36151

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NiVZ

function u(t) {

s=12;π=6.2831;w=960;h=540;r=t*220%960;for(i=0;i<s;i++){x.fillStyle=`hsl(${i/s*360},100%,50%)`;a=(i-t)/s*π;x.fillRect(S(a)*r+w,C(a)*r+h,9,9)}

May 28 2026 5:19 PM UTC

}// 140/140

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Rainbow Spirals

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NiVZ

function u(t) {

f=['🍟','🍔']
r=(a)=>Math.round(Math.random()*a);
x.font='120px Arial'
x.fillText(f[r(1)],r(1920),r(1080))

Apr 24 2026 2:25 PM UTC

}// 104/140

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Fast #Food

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NiVZ

function u(t) {

for(i=400;i--;){a=i*.7;r=i%100*2;X=300+C(a+r/99+t)*r;Y=170+S(a+r/99+t)*r*.35;x.fillStyle=`hsl(${220+r/3},99%,70%)`;x.fillRect(X,Y,2,2)}

Aug 6 2026 4:20 PM UTC

}// 135/140

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u/jpthinker

That's a pretty plane. It reminds me of a galaxy being viewed from afar, when they start to look all flat

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NiVZ

function u(t) {

eval(unescape(escape`砮牥獥琨⤻眽㤶〻栽㔱㈻景爨樽ㄶ㭪㰲㌻樫㴳⥻搽䑡瑥⠩⹳汩捥⡪ⱪ⬲⤻砮浯癥呯⡷ⱨ⤻戽樽㴱㘿ㄲ㨶〻氽横ㄸ㭡㵤⽢⨲⩍慴栮偉㭸⹬楮敔漨匨愩⩬⭷Ⱝ䌨愩⩬⭨⤻砮汩湥坩摴栽㘻砮獴牯步⠩㭽`.replace(/u(..)/g,"$1%")))

Jun 11 2026 3:24 PM UTC

}// 133/140

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Analog Clock Hands

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