Use selector expressions with the update operator to specify the fields to update.
This operator is the one to use when you wish to change specific fields on an Object, while keeping all…
The pluck operator is useful for mapping the object into the array, and it returns the array of values, keys,…
We use mapObject when we want to change the keys and/or values on an Object to be something else.
The filterObjectoperator iterates over a list of key-value pairs in an object and applies an expression that returns only matching…
Reduce function is used to do any computation while iterating on an array, so the computation result is not lost…
This function is useful for grouping together items in an array based on some value that is generated from each…
This function is useful for when you need to remove duplicate items from an Array.