| 1 | ;
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| 2 |
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| 3 | Object.defineProperty(exports, "__esModule", {
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| 4 | value: true
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| 5 | });
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| 6 | exports.arrayShuffle = arrayShuffle;
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| 7 |
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| 8 | // Copyright 2017-2022 @polkadot/util authors & contributors
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| 9 | // SPDX-License-Identifier: Apache-2.0
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| 10 | function arrayShuffle(input) {
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| 11 | const result = input.slice();
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| 12 | let curr = result.length;
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| 13 |
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| 14 | if (curr === 1) {
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| 15 | return result;
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| 16 | }
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| 17 |
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| 18 | while (curr !== 0) {
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| 19 | const rand = Math.floor(Math.random() * curr);
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| 20 | curr--;
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| 21 | [result[curr], result[rand]] = [result[rand], result[curr]];
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| 22 | }
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| 23 |
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| 24 | return result;
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| 25 | } |
| \ | No newline at end of file |