High-resolution JavaScript timer based on performance.mark/measure (491 bytes min+gz) - nolanlawson/marky
精度约1ms(需通过其它API配合) 三:High-Resolution Timer 这种方法就使用了CPU的RTC QueryPerformanceCounter() 配合 QueryPerformanceFrequency(),适用于高精度应用场合 参见:http://www2.matrix.org.cn/thread.shtml?topicId=10491&forumId=1&fid=1 --- 也就是说,如果JavaScript的new Date()采用getTickCount()来...
John Resign有三篇关于Timer性能与准确性的文章: 1.Accuracy of JavaScript Time, 2.Analyzing Timer Performance, 3.How JavaScript Timers Work。从文章中可以看到Timer在不同平台浏览器与操作系统下的一些问题。 再退一步说,假设timer resolution能够达到16.7ms,并且假设异步函数不会被延后,使用timer控制的动画还是...
精度约1ms(需通过其它API配合) 三:High-Resolution Timer 这种方法就使用了CPU的RTC QueryPerformanceCounter() 配合 QueryPerformanceFrequency(),适用于高精度应用场合 参见:http:///thread.shtml?topicId=10491&forumId=1&fid=1 --- 也就是说,如果JavaScript的new Date()采用getTickCount()来实现,那么它必然是返回...
John Resign有三篇关于Timer性能与准确性的文章: 1.Accuracy of JavaScript Time, 2.Analyzing Timer Performance, 3.How JavaScript Timers Work。从文章中可以看到Timer在不同平台浏览器与操作系统下的一些问题。 再退一步说,假设timer resolution能够达到16.7ms,并且假设异步函数不会被延后,使用timer控制的动画还是...
三:High-Resolution Timer 这种方法就使用了CPU的RTC QueryPerformanceCounter() 配合 QueryPerformanceFrequency(),适用于高精度应用场合 参见:http://www2.matrix.org.cn/thread.shtml?topicId=10491&forumId=1&fid=1 --- 也就是说,如果JavaScript的new Date()采用getTickCount()来实现,那么它必然是返回16ms间隔的...
We cannot assume that 1/60th of a second passes in each frame. Therefore we need to measure exactly how much time has passed between subsequent iterations of the loop. In modern browsers we can use thehigh resolution timerand in older browsers fallback to using aDateobject: ...
1 . What is JavaScript and what is the meaning of interpreted language? JavaScript is a high-level, interpreted, versatile, and dynamic programming language primarily used for creating interactive and dynamic content on websites. It is one of the core technologies of the World Wide Web, alongsid...
this.getBarTimer = setTimeout(function() { self.getBars(symbolInfo, resolution, rangeStartDate, rangeEndDate, onLoadedCallback) }, 10) } } 获取历史数据list的init方法: TVjsApi.prototype.initMessage = function(symbolInfo, resolution, rangeStartDate, rangeEndDate, onLoadedCallback){ ...
Instead, JavaScript provides the High Resolution Time API [45] (performance.now) for sub-millisecond timestamps. Based on this timing interface, various attacks have been demonstrated. Van Goethem et al. [41] were able to extract private data from users by measuring the differences in the ...