Testing some things

Testing some things

This is to compare the cost of this pattern ```if (map.has(key)) func1(map.get(key))``` v/s ```const v = map.get(key); if (v) func1(v);```

Manage Todos in a list - compare performance of Array vs Linked List.

Test on isEqual performance

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.

Single function vs Single responsibility in performance

Compare the new ES6 spread operator with the traditional concat() method

Compare the new ES6 spread operator with the traditional concat() method

Compare the new ES6 spread operator with the traditional concat() method

lodash for-in vs native for-in (lodash version: 4.17.10)