Equal Stacks

stacksHeights.js

h1 = readLine().split(' ');
	stacks['h1']['array'] = h1.map(Number);
	h2 = readLine().split(' ');
	stacks['h2']['array'] = h2.map(Number);
	h3 = readLine().split(' ');
	stacks['h3']['array'] = h3.map(Number);

	function pass() {
		let max = 0;
		let maxName = '';
		//calculate all heights
		for (let property in stacks) {
			let height;
			if (stacks[property].array.length !== 0) {
				height = stacks[property].array.reduce((a, b) => a + b);

			} else {
				height = 0;
			}
			stacks[property].height = height;
			if (stacks[property].height > max) {
				max = stacks[property].height;
				maxName = property;
			}
		}
		//if heights are equal, we are done. return.
		if (stacks.h1.height === stacks.h2.height && stacks.h1.height === stacks.h3.height) {
			console.log(stacks.h1.height);
			return;
		}
		//remove top block
		stacks[maxName].array.shift();
		//let's check here if it makes the heights equal to avoid passing again
		if (stacks[maxName].array.length !== 0) {
			stacks[maxName].height = stacks[maxName].array.reduce((a, b) => a + b);
			if (stacks.h1.height === stacks.h2.height && stacks.h1.height === stacks.h3.height) {
				console.log(stacks.h1.height);
				return;
			}
		} else {
			console.log(0);
			return;
		}
		//If it doesn't, let's do it again
		pass();
	}
	pass();
}