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/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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E-Mouse

remix of d/4838 by u/E-Mouse

function u(t) {

e=''.split(' '),s=[],c.width=100
for(i in e){o=e[i],n=+o;if(n==o)s.push(n);else q=s.pop(),w=s.pop(),s.push(eval(w+o+q))}x.fillText(s,9,9)

Dec 30 2017 1:36 PM UTC

}// 137/140

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E-Mouse

function u(t) {

e='1 2 + 100 *',e=e.split(' '),s=[]
for(i in e){o=e[i],n=+o;if(n==o)s.push(n);else q=s.pop(),w=s.pop(),s.push(eval(w+o+q))}x.fillText(s,9,9)

Dec 30 2017 1:00 PM UTC

}// 140/140

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A RPN(reverse polish notation) calculator in 140 bytes. The text is really small so either you have to zoom in or change the font size.

u/E-Mouse

Enter the RPN code in the e variable ("e='1 2 + * 10'")
u/E-Mouse

Btw only js operators

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E-Mouse

remix of d/4826 by u/Curlip

function u(t) {

x.fillStyle="#FFF5";x.fillRect(0,0,1920,1080);x.fillStyle="#000";for(i=9;i--;)w=99*i+400+S(t)*300,x.fillRect(w,400-99*S(w/99),50,200)

Dec 30 2017 10:21 AM UTC

}// 133/140

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Golfed it down 7 bytes

u/E-Mouse

Replace 1920 with 2e3 and 1080 with 1e3 and you are down to 131 bytes

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E-Mouse

remix of d/4721 by u/Xen

function u(t) {

x.strokeRect(3,4,W=1912,H=1072)
x.drawImage(c,4,4,W,H)
x.strokeStyle=`hsl(${t*H},99%,50%)`
x.rotate(T(t)*t/4e4)

Dec 29 2017 10:12 PM UTC

}// 111/140

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u/Xen

wacky :-D

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E-Mouse

remix of d/4342 by u/retera

function u(t) {

c.width=w=1920
v=t+400
for(q=255;q--;){x.fillStyle=R(q,q,q);x.beginPath();x.arc(w/2+(v-q)*T(v+q),540+(v-q)*T(v-q),40,0,6.283,!1);x.fill()}

Dec 29 2017 9:59 PM UTC

}// 138/140

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E-Mouse

remix of d/4342 by u/retera

function u(t) {

c.width=w=1920
v=t+400
for(q=255;q--;){x.fillStyle=R(q,q,q);x.beginPath();x.arc(w/2+(v-q)*C(v+q),540+S(v-q)*(v-q),40,0,6.283,!1);x.fill()}

Dec 29 2017 9:57 PM UTC

}// 138/140

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E-Mouse

function u(t) {

c.width|=0;for(i=32;i--;)x.fillRect(i*60,0,(Math.round(t).toString(2).padStart(32,0).charAt(i)==1)?50:0,1e3)

Dec 29 2017 6:09 PM UTC

}// 108/140

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Binary second counter!

u/BuRRak

Cool

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E-Mouse

remix of d/4342 by u/retera

function u(t) {

c.width=w=1920
v=t+400
for(q=255;q--;){x.fillStyle=R(q,q,q);x.beginPath();x.arc(w/2+T(v-q)*(v+q),540+S(v-q)*(v-q),40,0,6.283,!1);x.fill()}

Dec 29 2017 5:15 PM UTC

}// 138/140

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E-Mouse

remix of d/4136 by u/Exca

function u(t) {

t/=4;for(i=0;i<1100;i++){d=C(t+i),s=i==0?2920:9-d*8;x.fillStyle=R(i,i,i,0.1);x.fillRect(S(t*2.5+i)*220*T(C(t)+i%50)+960*(i==0?-1:1),i,s,s);}

Dec 29 2017 5:10 PM UTC

}// 140/140

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