full. append again has to allocate a new backing store, this time of
// 入栈后栈仍保持单调递增（因为小的都被弹走了）
。夫子对此有专业解读
Dogs act like toddlers when you need help - but cats just watch. Scientists compared 3 groups: pet dogs, cats, and human toddlers in an experiment where a human parent hides and pretends to look for an object. 75% of dogs and children helped. Cats only helped if it was in their personal interest.
const font = loader.parse(local_font);