On the first loop iteration, there is no backing store for tasks, so
人 民 网 版 权 所 有 ，未 经 书 面 授 权 禁 止 使 用
，详情可参考搜狗输入法下载
└──────────┬────────────┘
A developer wanting to use a new Web API must first understand it from a JavaScript perspective, then translate it into the types and APIs that are available in their source language. Toolchain developers can try to manually translate the existing web documentation for their language, but that is a tedious and error prone process that doesn’t scale.
习题链接：LeetCode 739. 每日温度