Function canShrink

javascript/0084-largest-rectangle-in-histogram.js:118–119

()

        const isCurrHeightLess = ([prevIndex, prevHeight], currHeight) =>
            currHeight < prevHeight;
        const canShrink = () =>
            isCurrHeightLess(stack[stack.length - 1], heights[index]);
        while (stack.length && canShrink()) {
            /* Time O(N + N) */
            const [_index, _height] = stack.pop();