Comparing performance of: for vs prototype.find vs forEach vs map

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

Figuring out the fastest way to get the minutes between two dates

Comparing the performance of different inputs to the Date constructor.

Compares three ways of determining if a variable is an object. - Check if object by comparing value to an object instantiated from the value - Using typeof - Using instanceof

Try to test different ways of keeping Intl.NumberFormat instances for better performance.