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requestAnimationFrame 会用于在浏览器下一次重绘前调用回调函数,会在回调函数的参数中传入DOMHighResTimeStamp数值,(double类型用于存储毫秒级的时间值)
double
let current = 0 function callback(timeStamp){ const step = timeStamp - current if(step > 30) return window.requestAnimationFrame(callback) }
它的返回值是一个 long整数,没有特别含义在整个回调列表中是唯一的可做清除回调的标记
long
const id = requrestAnimationFrame(callback) // 停止回调函数的调用 cancelAnimationFrame(id)
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requestAnimationFrame 会用于在浏览器下一次重绘前调用回调函数,会在回调函数的参数中传入DOMHighResTimeStamp数值,(
double
类型用于存储毫秒级的时间值)它的返回值是一个
long
整数,没有特别含义在整个回调列表中是唯一的可做清除回调的标记相关文章
The text was updated successfully, but these errors were encountered: