jimp/test.js at main · jimp-dev/jimp

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const anyBase = require("any-base");

const alphabet =

"0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ$_";

// an array storing the maximum string length of hashes at various bases

// 0 and 1 do not exist as possible hash lengths

const maxHashLength = [NaN, NaN];

for (let i = 2; i < 65; i++) {

const maxHash = anyBase(

anyBase.BIN,

alphabet.slice(0, i),

)(new Array(64 + 1).join("1"));

maxHashLength.push(maxHash.length);

}

console.log(maxHashLength);

// [

// NaN, NaN, 64, 41, 32, 28, 25, 23, 22, 21, 20, 19,

// 18, 18, 17, 17, 16, 16, 16, 16, 15, 15, 15, 15,

// 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13,

// 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12,

// 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11,

// 11, 11, 11, 11, 11

// ]

// refactor the above to not use any-base and still have the same result

const maxHashLength2 = [];

for (let i = 2; i < 65; i++) {

maxHashLength2.push(Math.ceil(Math.log(i) / Math.log(2)));

}

console.log(maxHashLength2);