Hot dweets by u/E-Mouse

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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E-Mouse

remix of d/7979 by u/jylikangas

function u(t) {

for(c.width=i=-9;++i<9;R=a=>x.lineTo(150+a*99/(z=j-t%1),z+99+(99+C(t*a)*a*4)/z))for(j=12;x.beginPath(x.stroke()),R(i),--j;R(i+1))R(i)

May 4 2018 9:42 PM UTC

}// 133/140

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u/katkip

#d3 #perspective

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E-Mouse

remix of d/7898 by u/E-Mouse

function u(t) {

let X,Y 
for(X=240;X--;)for(Y=135;Y--;x.fillRect(X*16,Y*16,16,16))x.fillStyle=R(r=(X*Y^X+Y*t)&5,0,r*255)

May 3 2018 8:39 PM UTC

}// 104/140

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E-Mouse

remix of d/7882 by u/rjro

function u(t) {

let X,Y 
for(X=66;X--;)for(Y=38;Y--;x.fillRect(X*30,Y*30,30,30))x.fillStyle=R(r=X*Y*T(X*Y*t/100^10)*255,0,r^(1))

May 2 2018 7:39 PM UTC

}// 112/140

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E-Mouse

remix of d/7894 by u/Idicious

function u(t) {

c.width=1920
w=c.width
h=c.height/2
r=Array.from({length:w},(a,b)=>T(b/S(t)/1e2)/10)
for(i=0;i<w;i++)x.fillRect(i,h-r[i]*h,1,r[i]*h*2)

May 4 2018 4:12 PM UTC

}// 134/140

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u/BuRRak

Rather than using {length:w} you can use Array(w)

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E-Mouse

function u(t) {

c.width=1920
for(i=0;i<10;i++) 
x.fillRect(400+i*100,i+t*10^1+400,50,200)

May 2 2018 7:59 PM UTC

}// 73/140

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u/stiaje

#default

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E-Mouse

remix of d/7887 by u/E-Mouse

function u(t) {

let X,Y 
for(X=240;X--;)for(Y=135;Y--;x.fillRect(X*16,Y*16,16,16))x.fillStyle=R(r=X*t*2&Y*t*2,0,r^(20))

May 3 2018 8:35 PM UTC

}// 103/140

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E-Mouse

remix of d/7867 by u/CocoMeister

function u(t) {

for(i=0;270>i;i++)x.fillRect(frame*C(i)+960,40*t,2,2);x.fillStyle="hsl("+2*frame*T(i)+",70%,50%)",x.rotate(3e-4*C(t))

May 2 2018 7:40 PM UTC

}// 117/140

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Rainbow road :P

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E-Mouse

function u(t) {

t;f=(n)=>{if(n<=1)return 1;return f(n-1)+f(n-2)}
throw f(10)

Feb 24 2018 2:15 PM UTC

}// 60/140

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Get the n:th fibonacci number!

u/cantelope

can remove the parentheses around n, e.g. f=n=>

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E-Mouse

remix of d/5734 by u/coderkid

function u(t) {

c.width|=0;for(s=20;s--;)for(a=11;a--;)x.fillStyle=R(s*t),x.beginPath(),x.arc(s*99-50,a*99-50,Math.abs(S(t/25*s*a)*50),0,2*Math.PI),x.fill()

Jan 9 2018 8:39 PM UTC

}// 140/140

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E-Mouse

remix of d/4155 by u/Bendoman

function u(t) {

c.width=2e3,τ=Math.PI*2,ʕ=900,ɂ=20;for(i=ɂ;i--;)x.arc(ʕ+C(t*2)*-30*i,200+(i*ɂ),ɂ,0,τ),x.arc(ʕ+S(t)*30*i,ʕ-(i*ɂ),ɂ,0,τ)<x.stroke()

Dec 31 2017 12:23 AM UTC

}// 129/140

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