Coding from scratch my own functions by imitating behavior of native Array.prototype methods: iterators, accessors and mutator methods (testing digestion techniques, part of the WatchAndCode Curriculum).

1. Array.prototype.find

2. Array.prototype.findIndex

3. Array.prototype.every

4. Array.prototype.some

5. Array.prototype.reduceRight

6. Array.prototype.concat

7. Array.prototype.indexOf

8. Array.prototype.lastIndexOf

9. Array.prototype.includes

10. Array.prototype.slice

11. Array.prototype.join

12. Array.prototype.push

13. Array.prototype.pop

14. Array.prototype.shift

15. Array.prototype.unshift

16. Array.prototype.fill

17. Array.prototype.reverse

18. Array.prototype.copyWithin

19. Array.prototype.sort

20. Array.prototype.splice