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

Comparing the various ways to append to an array

https://developer.mozilla.org/en-US/docs/Web/API/structuredClone

https://developer.mozilla.org/en-US/docs/Web/API/structuredClone

See if filter is faster than splice method for deletion

See if filter is faster than splice method for deletion

Test the speed and memory usage using 3 different techniques for constructing class objects.