1 | 'use strict'
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2 |
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3 | var clone = require('./clone')
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4 |
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6 |
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7 |
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8 |
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9 |
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10 |
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11 |
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12 | module.exports = function set (object, keypath, value) {
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13 | var results = {}
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14 | var parents = {}
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15 | var i, len
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16 |
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17 | for (i = 0, len = keypath.length; i < len; i++) {
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18 | if (i === 0) {
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19 | parents[i] = object
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20 | } else {
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21 | parents[i] = parents[i - 1][keypath[i - 1]] || {}
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22 |
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23 | if (typeof parents[i] !== 'object') {
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24 | parents[i] = {}
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25 | }
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26 | }
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27 | }
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28 |
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29 | for (i = keypath.length; i >= 0; i--) {
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30 | if (!parents[i]) {
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31 | results[i] = value
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32 | } else {
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33 | results[i] = clone(parents[i])
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34 | results[i][keypath[i]] = results[i + 1]
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35 | }
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36 | }
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37 |
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38 | return results[0]
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39 | }
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