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.

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Current theme challenge: #Food

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lars-erik

remix of d/22610 by u/lars-erik

function u(t) {

c.width=w=128
c.style.filter=`invert(90%) blur(5px)`
for(z=w;z--;)for(y=96;y--;)if(Math.floor(z*t/400*y)%30==0)x.fillRect(z, y, 4, 4)

Apr 24 2021 1:11 AM UTC

}// 134/140

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I have no idea what I'm doing™ #3

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lars-erik

function u(t) {

c.width=w=128
c.style.filter=`invert(90%) blur(5px)`
for(z=w;z--;)for(y=96;y--;)if(Math.floor(z**t/1e3*y)%30==0)x.fillRect(z, y, 4, 4)

Apr 24 2021 1:02 AM UTC

}// 135/140

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I have no idea what I'm doing™ #1

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taupelink

remix of d/22564 by u/taupelink

function u(t) {

for(i=k=q=150;--i;x.fillRect(q*X*C(Y),q*X*S(Y),8*q>>t,q>>(2/X+t/3)))f=i*t,X=f*f%50,Y=X*f%2,x.fillStyle=R(q=S(X)%T(1e3/q)*i*3,q^=i,q/2,i/q)

Apr 22 2021 6:24 PM UTC

}// 138/140

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d/22591

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lars-erik

remix of d/22624 by u/lars-erik

function u(t) {

c.width=w=167,f=n=>n|0,o=f(t*30+S(t)*50),b=t*2+10|0
for(z=w;z--;)for(y=96;y--;)if(f((z+o)*(y+t+50*S(t/2.5)|0))%b==0)x.fillRect(z-1,y,4,4)

Apr 24 2021 4:19 PM UTC

}// 137/140

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I have no idea what I'm doing™ #6

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lars-erik

remix of d/22620 by u/lars-erik

function u(t) {

c.width=w=167,f=n=>n|0,o=f(t*30*S(t)+50),b=45
for(z=w;z--;)for(y=96;y--;)if(f((z+o)*(y+t*50*S(t/2.5)|0))%b==0)x.fillRect(z-1,y,4,4)

Apr 24 2021 3:19 PM UTC

}// 131/140

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I have no idea what I'm doing™ #4.6

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lars-erik

remix of d/22615 by u/lars-erik

function u(t) {

c.width=w=167,f=n=>n|0,o=f(t*50),b=45
for(z=w;z--;)for(y=96;y--;)if(f((z+o)*y)%b==0)x.fillRect(z-1,y,4,4)

Apr 24 2021 3:06 PM UTC

}// 106/140

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I have no idea what I'm doing™ #4.5

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DaSpider

remix of d/22514 by u/KilledByAPixel

function u(t) {

for(i=6e3;!t&&i--;)document.write`<input type=radio style=font-size:1px;margin:-3; onmouseover=checked=event.buttons>`

Apr 21 2021 5:05 PM UTC

}// 118/140

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Toshiya-Marukubo

function u(t) {

w=c.width=1920;h=1080;s='Hello';x.font='300px serif';x.textAlign ='center';for(i=s.length;i--;)x.fillText(s[i],w/6*(i+1),S(i+t*5)*100+h/2)

Apr 23 2021 5:42 AM UTC

}// 138/140

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Please follow me : ) https://twitter.com/toshiyamarukubo

u/Xen

sent

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contone

remix of d/22584 by u/contone

function u(t) {

c.width|=0
for(i=2e3;i--;)
x.fillStyle=`hsl(${i*99},99%,50%)`,
x.fillRect(960+S(u=i/23.8)*900,(C(u)+S(4*t-i/4))*20+i*2*245.06%1e3,52,40)

Apr 21 2021 9:48 PM UTC

}// 136/140

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rodrigo.siqueira

remix of d/22574 by u/rodrigo.siqueira

function u(t) {

c.width=880
for(β=300;β--;c.style.filter='invert()')𝛾=(S(β)*(β-360))/C(β*β+t*3),x.lineTo(β*3,220*(K=.7+frame%2)+S(β/𝛾)*80*S(𝛾)/K)
x.stroke()

Apr 21 2021 2:59 PM UTC

}// 140/140

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Gamma (𝛾) and Beta (β) brain waves while composing a Dweet.

u/EliteDaMyth

you can save 2 chars by removing the brackets around the multiplication/division. for(c.width=880,β=300;β--;c.style.filter="invert()")𝛾=S(β)*(β-360)/C(β*β+3*t),x.lineTo(3*β,220*(K=.7+frame%2)+80*S(β/𝛾)*S(𝛾)/K);x.stroke()