100k list splice and shift win, they mutate list slice loose, it creates a copy of list 7.5x slower

measures the speed of ramda's map vs Array's native map vs lodash map

Compares performance on the same task using Lodash vs two styles of Ramda vs two styles of "native" Javascript. In all cases the task is pulling "counter" property from each item in an array, filtering out odd items, squaring them, then returning those squared values that have less than two digits.

given if initialization and obj are both O(1) ,test the performance

- https://github.com/MikeMcl/decimal.js/tree/v10.3.1

- https://github.com/MikeMcl/bignumber.js/tree/v9.0.0 - https://github.com/MikeMcl/big.js/tree/v5.2.2 - https://github.com/MikeMcl/decimal.js/tree/v10.2.0