console.timeEnd([label])

• label <string> 默认值： 'default'

停止先前通过调用 console.time() 启动的计时器，并将结果打印到 stdout：

【Stops a timer that was previously started by calling console.time() and prints the result to stdout:】

console.time('bunch-of-stuff');
// Do a bunch of stuff.
console.timeEnd('bunch-of-stuff');
// Prints: bunch-of-stuff: 225.438ms 拷贝