Diagnols Sum Codewars Javascript

Summary

this one uses the reduce() method, the String() constructor, and more kata link: ... standard if statement and for loop; i couldnt find a reliable one-liner kata link: ... this one uses a double for loop, the reduce() method, and more kata link: ... this how you find out what the whole array equals kata link: standard example of using the reduce() method. Code along with me as we solve 'Subtract the this one uses a for loop and the reduce() method kata link: ... this one uses the Number() constructor and the String() constructor kata link: ... solution = github.com/shloch/CODING_PRACTICE/blob/master/ this one uses a while loop, the Array.from() method, and more kata link: ... reworked version: youtu.be/f2PL0r7uNCw using the Array() constructor, fill(), and reduce()instead of n*(n+1)/2.