FIguring out the performance differences between using the operations in the name on copying an array of objects considering the fact that other methods of copying (slice, concat, etc.) are shallow copies and end up being by reference instead of by value.

Test performance between spread operator and push.apply

gwegwgw

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.

100 Li elements using querySelectorAll and custom query function got from http://ryanmorr.com/abstract-away-the-performance-faults-of-queryselectorall/ and qs from https://codereview.stackexchange.com/questions/25452/very-fast-query-selector

100 Li elements using querySelectorAll and custom query function got from http://ryanmorr.com/abstract-away-the-performance-faults-of-queryselectorall/

100 Li elements using querySelectorAll and custom query function got from http://ryanmorr.com/abstract-away-the-performance-faults-of-queryselectorall/