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on this file was 79a0317, checked in by stefan toskovski <stefantoska84@…>, 4 days ago |
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1 | /*
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2 | MIT License http://www.opensource.org/licenses/mit-license.php
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3 | Author Ivan Kopeykin @vankop
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4 | */
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5 |
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6 | "use strict";
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7 |
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8 | const A_CODE = "a".charCodeAt(0);
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9 |
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10 | /**
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11 | * @param {string} hash hash
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12 | * @param {number} hashLength hash length
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13 | * @returns {string} returns hash that has at least one non numeric char
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14 | */
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15 | module.exports = (hash, hashLength) => {
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16 | if (hashLength < 1) return "";
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17 | const slice = hash.slice(0, hashLength);
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18 | if (/[^\d]/.test(slice)) return slice;
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19 | return `${String.fromCharCode(
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20 | A_CODE + (Number.parseInt(hash[0], 10) % 6)
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21 | )}${slice.slice(1)}`;
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22 | };
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