random() * total) ul.appendChild(li) } console.log('v8执行代码的时间:', Date.now() - prevTime); setTimeout(() => { console.log('渲染页面的时间:', Date.now() - prevTime); }, 0) </script> Reference: 面试官:如何一次性渲染十万条数据 https://juejin.cn/post/7354940230301057033...
} console.log('v8执行代码的时间:', Date.now() - prevTime); setTimeout(() => { console.log('渲染页面的时间:', Date.now() - prevTime); }, 0) </script> 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. Reference: 面试官:如何一次性渲染十万条数据 --- 生活的...
console.groupEnd(); 使用性能计时器 该time( label ) 命令启动一个计时器。timeEnd( label ) 到达关联的命令后,将报告经过的时间(以毫秒为单位)。 计时器可用于评估操作的性能-比管理自己的 Date() 计算更容易,更准确,例如 // start timer console.time('bigloop'); for (let i = 999999999; i > 0;...
该time( label )命令启动一个计时器。timeEnd( label )到达关联的命令后,将报告经过的时间(以毫秒为单位)。 计时器可用于评估操作的性能-比管理自己的 Date() 计算更容易,更准确,例如 代码语言:javascript 复制 // start timerconsole.time('bigloop');for(leti=999999999;i>0;i--);// show elapsed time...
On-time shipping After-sales protections Product monitoring services Source on Alibaba.com Request for Quotation Membership program Alibaba.com Logistics Sales tax and VAT Alibaba.com Reads Sell on Alibaba.com Start selling Seller Central Become a Verified Supplier Partnerships Download the app for suppl...
clock daylight-saving-timetime-zone-namerepeatingstart-timestart-date1end-timeend-date1offset[start-year[end-year] ] 缺省情况下,系统没有设置夏令时。 配置周期夏令时,夏令时开始时间和结束时间支持日期+日期、星期+星期两种配置方式。配置方法请参考clock daylight-saving-time命令。
&console.timeEnd() 如果我们想要获取一段代码的执行时间,就可以使用console对象的console.time() 和console.timeEnd()方法,来看下面的例子:console.time...来看下面的例子:console.group();console.log('First Group');console.group();console.log('Second Group')console.groupEnd...console.log("C");console...
}functionbitwise(n) {constnums = [];letstartTime = performance.now();for(leti =0; i < n; i++) { nums.push(~~Math.random()); }letendTime = performance.now();console.log(`🚀 double not bitwise cost time is${endTime - startTime}ms`, n);returnendTime - startTime; ...
C# Console Application- How to make the program create a new text file each time? C# Console application, getting input without displaying it C# Console dispearing when Process.Start() runs C# Console Window - Disable Resize C# Continuous capturing of an area on screen C# Convert console output...
()to end the timer and send the result to the console. If you want to label your timer or need more than one timer, pass a string with a unique label as the argument for both theconsole.time()andconsole.timeEnd()methods. If you don't pass an argument, the methods use "default" ...