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Showing posts with the label Mapreduce
Mongoose / Mongodb: Count Elements In Array

Mongoose / Mongodb: Count Elements In Array

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I'm trying to count the number of occurrences of a string in an array in my collection using Mo… Read more Mongoose / Mongodb: Count Elements In Array
Get Document's Placement In Collection Based On Sort Order

Get Document's Placement In Collection Based On Sort Order

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I'm new to MongoDB (+Mongoose). I have a collection of highscores with documents that looks lik… Read more Get Document's Placement In Collection Based On Sort Order
Calculate Average Of Duplicates In A Javascript Array Of Objects

Calculate Average Of Duplicates In A Javascript Array Of Objects

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I have an array of objects: [ {'market': 'Qacha's nek','commodity': 55,… Read more Calculate Average Of Duplicates In A Javascript Array Of Objects
Collect Distinct Field Names At Nested Level With Specific Condition

Collect Distinct Field Names At Nested Level With Specific Condition

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I have problem statement, in which i need all the field names at child level of 'config.first.… Read more Collect Distinct Field Names At Nested Level With Specific Condition
Mongodb Query To Remove Duplicate Documents From A Collection

Mongodb Query To Remove Duplicate Documents From A Collection

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I take data from a search box and then insert into MongoDB as a document using the regular insert q… Read more Mongodb Query To Remove Duplicate Documents From A Collection
Dc.js: Stacked Area Chart Using Reducecount Method

Dc.js: Stacked Area Chart Using Reducecount Method

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I'm fairly new to the dc.js/crossfilter/d3 trifecta, and have a question about grouping variabl… Read more Dc.js: Stacked Area Chart Using Reducecount Method