| 1 | function override(source1, source2) {
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| 2 | var target = {};
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| 3 | var key1;
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| 4 | var key2;
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| 5 | var item;
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| 6 |
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| 7 | for (key1 in source1) {
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| 8 | item = source1[key1];
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| 9 |
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| 10 | if (Array.isArray(item)) {
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| 11 | target[key1] = item.slice(0);
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| 12 | } else if (typeof item == 'object' && item !== null) {
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| 13 | target[key1] = override(item, {});
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| 14 | } else {
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| 15 | target[key1] = item;
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| 16 | }
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| 17 | }
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| 18 |
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| 19 | for (key2 in source2) {
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| 20 | item = source2[key2];
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| 21 |
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| 22 | if (key2 in target && Array.isArray(item)) {
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| 23 | target[key2] = item.slice(0);
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| 24 | } else if (key2 in target && typeof item == 'object' && item !== null) {
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| 25 | target[key2] = override(target[key2], item);
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| 26 | } else {
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| 27 | target[key2] = item;
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| 28 | }
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| 29 | }
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| 30 |
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| 31 | return target;
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| 32 | }
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| 33 |
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| 34 | module.exports = override;
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