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being one of the most dynamic
and widely-used programming languages,
constantly evolves to meet the needs of developers.
Map.groupBy for grouping data in the latest
that has reached stage 4,
array elements were normally grouped using a combination of
other array manipulation techniques.
Here is an example of how we can organize the timesheetEntries array based on the
The Object.groupBy method efficiently groups items based on an arbitrary key.
As demonstrated in the below example,
we can effortlessly group elements by applying a custom logic,
such as odd/even numbers.
The result is a null-prototype object,
preventing accidental collisions with global Object properties.
Map.groupBy returns items in a Map,
providing a more versatile approach for grouping using object keys.
This is particularly useful for scenarios involving complex key types,
such as compound keys