Transaction

jrun
 Run ▸ ExtraMd{"in":0,"ref":[],"out":["1171a4ea24e8919441957507ef1eed9cecaad1875e854184f0ede57ce6432ffa"],"del":[],"cre":["1PytriYokKN3GpKw84L4vvrGBwUvTYzCpx"],"exec":[{"op":"DEPLOY","data":["class Base58 {\n static decode (s) {\n // Based on https://gist.github.com/diafygi/90a3e80ca1c2793220e5/\n if (typeof s !== 'string') throw new Error(`Cannot decode: ${s}`)\n const A = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'\n const d = [] // the array for storing the stream of decoded bytes\n const b = [] // the result byte array that will be returned\n let j // the iterator variable for the byte array (d)\n let c // the carry amount variable that is used to overflow from the current byte to the next byte\n let n // a temporary placeholder variable for the current byte\n for (let i = 0; i < s.length; i++) {\n j = 0 // reset the byte iterator\n c = A.indexOf(s[i]) // set the initial carry amount equal to the current base58 digit\n if (c < 0) throw new Error(`Invalid base58 character: ${s}\\n\\nDetails: i=${i}, c=${s[i]}`)\n if (!(c || b.length ^ i)) b.push(0) // prepend the result array with a zero if the base58 digit is zero and non-zero characters haven't been seen yet (to ensure correct decode length)\n while (j in d || c) { // start looping through the bytes until there are no more bytes and no carry amount\n n = d[j] // set the placeholder for the current byte\n n = n ? n * 58 + c : c // shift the current byte 58 units and add the carry amount (or just add the carry amount if this is a new byte)\n c = n >> 8 // find the new carry amount (1-byte shift of current byte value)\n d[j] = n % 256 // reset the current byte to the remainder (the carry amount will pass on the overflow)\n j++ // iterate to the next byte\n }\n }\n while (j--) { b.push(d[j]) } // since the byte array is backwards, loop through it in reverse order, and append\n if (b.length < 5) throw new Error(`Base58 string too short: ${s}`)\n // We assume the checksum and version are correct\n return b.slice(1, b.length - 4)\n }\n}",{"deps":{}}]}]}