New #hash dweets

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: #ScaryMovies

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katkip

remix of d/19310 by u/katkip

function u(t) {

h=r=>{var n=0;if(0==r.length)return n;for(var t=0;t<r.length;t++)n=(n<<5)-n+r.charCodeAt(t),n&=n;return n.toString(16)}
throw h("text")

Jul 3 2020 6:15 PM UTC

}// 135/140

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shorter, unsecure #hash

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katkip

function u(t) {

eval(unescape(escape`𠐽𜠪𚠱𜠸𛁂👛𜰬𝐬𝰬𜐱𛀱𜰬𜐷𛀱𞑝𛁈👮🐾𮱦𫱲𚁯👮𛱁𛁲🐹𚱂𦱮𙐷𧐻𬠭𛐻𚑶👂𦱮𙐷𧐬𫠽𚁮𚱯𚐯𜠬𫰽𫰾🡶𯁯🀼𜐲𞀭𭠬𫰫🐨𞐫𫰥𝠩𚠪𠡛𬠥𝡝𛁯𧠽𫠥𚁂𦱲𙐶𧐪𭠩𛁯𙐽𠐻𬡥𭁵𬡮𘁯𯐠`.replace(/uD./g,'')));throw H(1234567891234)

Jul 3 2020 6:12 PM UTC

}// 140/140

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A real cryptographic hashing algorithm! #hash A=2**128,B=[3,5,7,11,13,17,19],H=n=>{for(o=n/A,r=9+B[n%7];r--;)v=B[n%7],n=(n+o)/2,o=o>>v|o<<128-v,o+=(9+o%6)**B[r%6],o^=n%(B[r%6]*v),o%=A;return o}

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katkip

function u(t) {

s="this🎉is🎉the🎉smallest🎉hex🎉hashing🎉algorithm🎉ever🎉"
throw[...s].reverse``.map(z=a=>a.charCodeAt(0)**3).reduce(t=(a,b)=>a+b).toString`16`

Jul 3 2020 3:53 PM UTC

}// 137/140

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u/pavel

reverse? t=?
u/katkip

#hash #math
u/katkip

you are right, they are useless

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KilledByAPixel

function u(t) {

t?h.innerHTML=[...s.value].reduce((a,c)=>c.charCodeAt()+a*31|0,0):c.outerHTML='<input id=s style=border:solid value=Dwitter!> <span id=h>'

Jul 2 2020 3:12 AM UTC

}// 138/140

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String to Hash Code #example

u/katkip

X=88, Y=89 ... seems like a crackable one
u/katkip

#hash
u/KilledByAPixel

its not really trying to be uncrackable, just converting a string to a number

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