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: #Opposites

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zadgy5534

function u(t) {

c.width|=0
for(i=w=2e3;i--;x.fillStyle=R(w*T(i-t),i%t,w/i))
x.fillRect(960+i*.5*C(i%t),540+i*.2*S(i%t),8,8)

Nov 5 2024 8:23 AM UTC

}// 107/140

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Yet another spiral

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Agnes

remix of d/32681 by u/magna

function u(t) {

for(c.width|=j=100,x.scale(A=70*(1+.3*S(t)),A);j--;)for(i=8;i--;"䁾䂁䂁䂥䂥䂁䂁䂁䂁䂁䃕䂫".charCodeAt(j|=0)>>i&1&&x.fillRect(5+i+S(j+t)*j/25,j,1,1));

Nov 4 2024 2:15 PM UTC

}// 137/140

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Animated #ghost

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0x61

function u(t) {

a=(T,r)=>[r*C(T),r*S(T)];for(r=Z=c.width=1920,n=0;n++<r;){[Q,W]=a(n,r/3);[E,R]=a(n*C(t/50)/2,r/9);x.fillRect((Q+E+Z)/2,(W+R+Z/2)/2,6,6)}

Nov 4 2024 12:37 AM UTC

}// 136/140

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Donuts, donuts!

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shandriy

function u(t) {

t?i++:i=1;document.write(((i%3?"":"Fizz")+(i%5?"":"Buzz")||i)+" ");

Nov 6 2024 3:44 AM UTC

}// 67/140

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FizzBuzz

u/DaSpider

#FizzBuzz record still mine! 😉

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rodrigo.siqueira

remix of d/32675 by u/Agnes

function u(t) {

for(R=w=c.width&=i=8320;i;F=2*T-2+S(12*X)*C(12*Y+t*3)>Y?T-R?x.fillRect(--i%w,i>>7,Y,T=R=1):R*=h:T-R?T/=h:T=R/=h=.96)X=i%w/64*R-T,Y=i/8e3*R

Nov 1 2024 1:01 PM UTC

}// 138/140

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Rotating stellated spiked sphere #uncompressed

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SockTaters

remix of d/32685 by u/SockTaters

function u(t) {

i=t>>3
x.fillRect(t%8*90,i*90,"´ဃ࠳ဃࠃဳࠃ´".charCodeAt(t%8)>>i&2,90)

Nov 2 2024 7:51 AM UTC

}// 65/140

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smollererer boo

u/magna

Smol!
u/tomxor

!

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SockTaters

remix of d/32681 by u/magna

function u(t) {

for(i=a=90;i--;)x.fillRect(t*a,i*a,"´ဃ࠳ဃࠃဳࠃ´".charCodeAt(t)>>i&2,a)

Nov 2 2024 5:27 AM UTC

}// 67/140

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smollerer boo

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rodrigo.siqueira

remix of d/32675 by u/Agnes

function u(t) {

eval(unescape(escape`𩡯𬠨𨰮𭱩𩁴𪀽𤠽𭰽𜐲𞀬𪐽𜑥𝀻𪐻𬱼𚁆🐨𤰨𭀪𝐫𞐪𦐫𦀪𦀪𠰨𭀪𝠫𦠩𚠸𚱚𚠲𚐾𛠹𚐩🱔𛑒🱸𛡦𪑬𫁒𩑣𭀨𛐭𪐥𭰬𪐾🠷𛁴🀱🱘𛱴𞡘𛁔👒🐱𛠷𚐺𤠪👨𞡔𛑒🱔𛰽𪀺𥀽𤠯👨🐮𞐸𚑘👩𙑷𛰶𝀪𤠭𥀬𦐽𪐯𞁥𜰪𤠭𥀯𜠬𦠽𥀭𜐮𝐬𬰽𦀪𦀫𦠪𦠫𦐪Y`.replace(/u../g,"")))

Oct 31 2024 7:32 PM UTC

}// 137/140

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Chromatic wings

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robbyg

function u(t) {

eval(unescape(escape`󨼮󭽩󩍴󪍼󟜰󛍷󟜶󜌬󮌮󩽬󫽢󨝬󠽯󫝰󫽳󪝴󩝏󬍥󬭡󭍩󫽮󟜢󮍯󬬢󒭦󫽲󚍶󟜱󞌻󥬽󭬭󛜪󭼻󚝦󫽲󚍨󟜳󜬻󢌽󪌭󛜪󭼻󚝻󚍨󚽶󚜥󜬦󙭸󛭦󪝬󫍒󩝣󭌨󢌬󥬬󭼬󭼩󒭸󛭦󪝬󫍒󩝣󭌨󢌫󝜬󥬫󝜬󜜵󛌱󝜩󛍸󛭦󪝬󫍒󩝣󭌨󢌫󝌰󛍖󚼴󜌬󜜵󛌱󝜩󯜻`.replace(/u../g,'')))

Nov 1 2024 2:06 AM UTC

}// 128/140

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Optical illusion I saw somewhere. All the rows and columns are perfectly straight.

u/magna

#opticalillusion

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skeletonNatte

function u(t) {

for(j=0;j<12;j++)for(i=0;i<8;i++){
s="~䃝䃝¥¥䃝䃝䃝䃝䃝«Õ".charCodeAt(j).toString(2).padStart(8,0)[i]
a=90
x.fillRect(i*a,j*a,s*a,a)}

Oct 31 2024 2:44 PM UTC

}// 126/140

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BOO!

u/magna

78: d/32681