[SERVER-44441] aggregation framework should have a $find expression - MongoDB

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Aggregation framework has a filter, which filters an array (and returns an array).

I wish there was an equivalent to do a javascript Array.find(), where the filter would return the first match inside of the array

db.test.insert({people: [{name: 'bob', value: 1}, {name: 'fred', value: 2}]});

db.test.aggregate([{$addFields: {

  person: {

    $find: {

      input: '$people',

      cond: {$eq: ['$$this.name', 'fred']}

},

  people: '$$REMOVE'

}}]);

##returns

{person: {name: 'fred', value: 2}}

is duplicated by

SERVER-44957 Proposal: $find aggregation pipeline operator