Look, ignore the code police. I understood what you were doing. So clever. Are you at Harvard? 🤣

Love this, my code is so bloated in comparison, but I used reduce so not to far from your solution in a way!

I'm having trouble conceptually with the maths here, are there any good resources that can help me understand the inner square growth?

Apologies. I think I misunderstood the description. Please ignore to your hearts content.

This test here
assert.strictEqual(hasSurvived([32, 65, 21, 83, 85, 7, 71, 45, 20, 63], [83, 44, 38, 55, 84, 80, 58, 20, 4, 74]), false);

Isn't it meant to be true?

Same num of soldiers
Attackers points 492 vs Defender points 540

I wrote war and peace to achieve this. Well done for this.

I'm not sure about other languages, but in JavaScript, 0 starts from the left and numbers ascend toward the right. Not sure why 0 starts from the right and ascends to the left.. It's a bit awkward tbh..