console.timeEnd([label])


    停止之前通过调用 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('100-elements');
    for (let i = 0; i < 100; i++) {}
    console.timeEnd('100-elements');
    // prints 100-elements: 225.438ms