Prism · Sugar

$sum

Adds up the numbers of a list. Shorthand for a $reduce with an $add.

The source

{ values: [10, 20, 30, 40] }

The config

{ $sum: { over: { $ref: '$.values' } } }

What comes out

Output matches the expected value

Runs in this page on the installed package. The input and the expected output are defined by the example.