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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katkip

function u(t) {

c.width*=1;f=(X,Y,s)=>{if(s>20)for(i=0;i<9;i++)x.fillRect(X+i*s*2+S(t)*s*6,Y,s,s*4),f(X+s,Y+s,s/1.3)};f(300,300,100)

Jan 17 2019 1:49 PM UTC

}// 116/140

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#d3 #recursive #recursion #default #perspective

u/metamero

nice idea. this can go better

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joeytwiddle

function u(t) {

R=()=>(97*t++*t%1)*16<<7
for(i=2;i--;x.fill())x.beginPath(x.fillStyle=`hsla(${R()},99%,${50*!i}%,${i?.03:.5})`)|x.arc(R(),R(),i?3e3:40,0,7)

Jan 17 2019 6:05 AM UTC

}// 139/140

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Blinkenlights

u/joeytwiddle

Inspired by (but barely resembling) the Arabesque screensaver on macOS
u/joeytwiddle

For brighter lights, try .8 instead of .5
u/joeytwiddle

Whatever number you choose, one lights always blinks regularly. For 97 it's the orange light in the lower right.
u/joeytwiddle

For 321 there is a yellow light giving a double pulse

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katkip

function u(t) {

c.width*=1;x.beginPath();for(i=9;i--;)for(j=9;j--;)x.lineTo(960+C(j*i*t/12)*1920,540+S(j*i*t/12)*1920);x.fill("evenodd")

Jan 17 2019 2:27 PM UTC

}// 120/140

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f8f82804

remix of d/11809 by u/f8f82804

function u(t) {

throw s=t?s.replace(/[\u0300-\u0312]*/g,
m=>m.slice(-64)+String.fromCharCode(768
+18*Math.random())):' '.repeat(512)

Jan 15 2019 9:00 PM UTC

}// 116/140

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#zalgo #unicode #glitch #corruption #matrix #waterfall #throw #regex #regexp #golf

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f8f82804

remix of d/11808 by u/f8f82804

function u(t) {

if(t){for(i=99;i--;)s=s.slice(x.valueOf=Math.random,j=x*s.length)+String.fromCharCode(768+x*18)+s.slice(j)}else s='dweet'.repeat(99);throw s

Jan 15 2019 12:02 AM UTC

}// 140/140

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#unicode #corruption #glitch

Show more comments…
u/metamero

yeeaaaah burn in hell this code
u/joeytwiddle

#evil #fire #throw
u/metamero

d/11815
u/katkip

#genius zalgo
u/f8f82804

#zalgo
u/sigveseb

Oh god

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metamero

function u(t) {

oremâtem='‮<p style=padding:1em;font-size:42px>‮ȯ̇̉rͬeͤm͓ͭaͭ̌͛tͥeͦmͩ';document.body.outerHTML=oremâtem

Jan 15 2019 1:02 PM UTC

}// 103/140

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u/katkip

? i don't understand the code
u/katkip

oh, ...

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metamero

remix of d/9207 by u/MrM@_S

function u(t) {

eval(unescape(escape`琿䴮潮扬畲㵦㴾䴮癡汵攽捯摥⹲数污捥⠯孞ℭ繝⬯ⱓ瑲楮朮晲潭䍨慲䍯摥⠮⸮⡍⹶慬略⬢㬢⤮浡瑣栨⼮ⸯ朩⹭慰⡥㴾敛昽≣桡牃潤敁琢崨⤼㰸籥学崨ㄩ⤩⤺挮潵瑥版呍䰽∼瑥硴慲敡⁲潷猽㜠捯汳㴷㐠楤㵍㹣潤攢`.replace(/u(..)/g,"$1%")))

Jan 16 2019 3:27 PM UTC

}// 140/140

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dwitter compressor 2.0

u/metamero

paste your code on textarea, click out of it, then get compressed code. same as d/9207, characters ranging from 0-255, limit of 184 bytes.
u/f8f82804

#compressor #tool #compressed
u/f8f82804

#184b
u/username

#compress

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katkip

remix of d/11866 by u/katkip

function u(t) {

if(!t){f=(X,Y,s)=>{if(s>4)x.fillRect(X-s/2,Y-s/2,s,s),f(X-s,Y,s/2),f(X,Y-s,s/2),f(X+s,Y,s/2),f(X,Y+s,s/2)}
f(960,540,720)}

Jan 17 2019 3:21 PM UTC

}// 122/140

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metamero

remix of d/11795 by u/metamero

function u(t) {

for(i=99;i--;)s=t?s.slice(r=Math.random,j=r()*s.length)+String.fromCharCode(768+r()*99)+s.slice(j):s=pauseDemo=' dwitter'.repeat(13);throw s

Jan 15 2019 10:09 AM UTC

}// 140/140

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glad my unicode stream inspired some #unicode chaos magic : this is also remix of d/11809 by u/f8f82804

u/f8f82804

#zalgo

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f8f82804

remix of d/11848 by u/metamero

function u(t) {

eval(unescape(escape`琿䴮潮扬畲㵦㴾䴮癡汵攽捯摥⹲数污捥⠯孞ℭ繝⬯ⱓ瑲楮朮晲潭䍨慲䍯摥⠮⸮⡍⹶慬略⬢㬢⤮浡瑣栨⼮ⸯ朩⹭慰⡥㴾敛昽≣桡牃潤敁琢崨⤼㰸籥学崨ㄩ⤩⤺挮潵瑥版呍䰽⊻㱩湰畴⁩搽䴾ꬢ`.replace(/u(..)/g,"$1%")))

Jan 16 2019 7:13 PM UTC

}// 130/140

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#golf version of u/metamero's #compressor #tool that leaves 19 bytes for additional features