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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DataMeta

remix of d/16813 by u/Xen

function u(t) {

x.fillRect(0,0,c.width|=j=560,2e3);for(r=Math.random;j--;)x.clearRect(64*(j%32),64*(i=j/32|0),r()*S(i^t)*1e3-j,r())

Dec 7 2019 11:40 PM UTC

}// 115/140

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degraded VHS tape

u/DataMeta

Friendly reminder - convert your memories on VHS to digital to safeguard them

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KilledByAPixel

remix of d/16362 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`𭱩𭁨𚁸𚑦𫱲𚁴🱦𪑬𫁒𩑣𭀨𜀬𜀬𜡥𜰬𜡥𜰩𞡳𨱡𫁥𚀶𛀶𚐬𬐽𬠽𞐰𞱲𛐽𝠻𨡥𩱩𫡐𨑴𪀨𬱴𬡯𪱥𤱴𮑬𩐽𨁨𬱬𚀤𮱲𯐠𞐹𙐶𜀥𨀬𬱴𬡯𪱥𚀩𚐩𩡯𬠨𪐽𝀰𞱡👩𛐭🠾𜰻𩑬𫁩𬁳𩐨𜐶𜀬𬐫𨐥𜠪𬠭𬠯𜠬𬠬𬠯𜠬𜀬𨠽𚁩𛑡𚰨𮠥𜠼𜐦𙡺𚐩𙐴𚠱𛠵𝰬𨠩𚑺👴𚱲𛱱`.replace(/u../g,'')))

Dec 6 2019 4:19 PM UTC

}// 140/140

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Staggered Cubes - Based On https://codepen.io/jh3y/full/PooMGaQ

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atvk

function u(t) {

c.width=1920 // clear the canvas
x.fillStyle = "#FF0000";
for(i=0;i<18;i++)
x.fillRect(400+i*100+S(t)*300,400,50,200) // draw 50x200 rects

Dec 9 2019 5:02 AM UTC

}// 138/140

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katkip

remix of d/16800 by u/katkip

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪀪🐱𞱩𩠨𘑴𚑻𬐽𦱝𞱦𫱲𚁩🐹𞱩𛐭𞰩𩡯𬠨𪠽𝀰𞱪𛐭𞰩𬐮𬁵𬱨𚁻𭠺𜀬𥠺𜀬𥀺𜰵𜀫𪐪𜐰𜀬𭀺𝀰𜀫𪠪𝑽𚑽𩡯𬠨𫰠𫱦𘁱𚑻𮀮𩡩𫁬𤡥𨱴𚁯𛡔𚰽𫰮𭠬𫰮𭀫👯𛡖𛀵𜀬𝐩𛁯𛡖𚰫𞱩𩠨𫰮𭀾𜐰𞀰𚑯𛡖𚠽𛐮𞐬𫰮𭀫👯𛡖𛁯𛡶👓𚁯𛡴𚑽`.replace(/uD./g,'')))

Dec 6 2019 1:16 PM UTC

}// 135/140

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gravity #default 2 #compressed

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Xen

remix of d/16811 by u/DataMeta

function u(t) {

x.fillRect(0,0,c.width|=j=560,2e3);for(r=Math.random;j--;)x.fillStyle=R(j,j,j),x.fillRect(64*(j%32),64*(j/32|0),r()/r()/9,r()/r()/9)

Dec 7 2019 5:47 PM UTC

}// 132/140

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slight golf for more grain maybe to be added

u/Xen

i'm silly and drunk, can nest last Rect for another byte
u/Xen

i'm also using comments as a super slo-mo kinda chat, back 2moz night maybe lol
u/DataMeta

also if we're using white might as well use clearRects
u/DataMeta

how to find balance between max authenticity and max golf - the perpetual dilemma

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nikoloffgeorgi

function u(t) {

a=500
j=960
n=540
x.fillStyle=R(23,41,58,.08)
x.fillRect(0,0,j*2,n*2)
x.fillStyle='#fff'
while(a--)x.fillRect(S(a)*j+j,C(t*12+a*3)*n+n,30,1)

Dec 6 2019 4:43 PM UTC

}// 140/140

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seism

remix of d/16784 by u/generateme

function u(t) {

for(i=0;i<99;i++)for(j=0;j<50;j++){x.fillStyle=`hsl(${i*t},89%,60%,.1`;x.fillRect(i*20,j*20,40*C(t+S(i*j+t/9)^2),9*S(t/11+C(t)*T(t*2+j/t)))}

Dec 6 2019 7:49 AM UTC

}// 140/140

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moar rainbows

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rodrigo.siqueira

remix of d/13690 by u/rodrigo.siqueira

function u(t) {

for(c.width|=w=950,i=2e3;i--;)X=3*C(U=i/3)+C(V=1e6/U)*C(t),Y=(2+S(U*3+t))*S(U+t)-3,Z=S(U*2+t*9)-C(t*4)-6,x.lineTo(w+w*X/Z,w*Y/Z)
x.stroke()

Dec 4 2019 2:21 PM UTC

}// 139/140

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Dancing fiber ribbon

u/katkip

smooth
u/Xen

Very smooth

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Xen

remix of d/16794 by u/rodrigo.siqueira

function u(t) {

for(c.width|=w=950,i=7e3;i--;x.lineTo(w+w*X/(Z=S(U*t/i+t*3)-C(t)-7),w*Y/Z))X=9*C(U=i/3)+C(V=1e9/U)*S(t/5)*9,Y=7*S(U*U)*C(V-t)-4
x.stroke()

Dec 5 2019 6:21 PM UTC

}// 138/140

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Neuro-Logikal (keep staring)

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tactical_retard

function u(t) {

a="";for(i=1;i<101;i++)s="",s=i%3!=0&&i%5!=0?i:s+=i%3?"":"Fizz",s+=i%5?"":"Buzz",a+=s+" ";throw a

Dec 5 2019 6:17 PM UTC

}// 97/140

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FizzBuzz

u/Xen

Nice!
u/pavel

69: for(n=s='';n++<100;s+=(n%5?f||n:f+'Buzz')+' ')f=n%3?'':'Fizz';throw s