| 1 | export default function(target) {
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| 2 | for (let i = 1, j = arguments.length; i < j; i++) {
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| 3 | let source = arguments[i] || {};
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| 4 | for (let prop in source) {
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| 5 | if (source.hasOwnProperty(prop)) {
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| 6 | let value = source[prop];
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| 7 | if (value !== undefined) {
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| 8 | target[prop] = value;
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| 9 | }
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| 10 | }
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| 11 | }
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| 12 | }
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| 13 |
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| 14 | return target;
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| 15 | };
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