mongoose unique subdocument

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1Model.update({
2  _id: '576328595b2880f831413b92',
3  'subdocs.name': {
4    $ne: 'Unique Name'
5  }
6}, {
7  $push: {
8    subdocs: {
9      name: 'Unique Name'
10    }
11  }
12}).then((raw) => {
13  // check raw.nModified value
14}).catch(next);

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