Function getHeights

javascript/0042-trapping-rain-water.js:84–84

(height, left, right)

const hasNewMax = (max, height) => max < height;

const getHeights = (height, left, right) => [height[left], height[right]];

const getWindows = (height, left, maxLeft, right, maxRight) => {
    const [leftHeight, rightHeight] = getHeights(height, left, right);