I m 运行相对简单的功能(更新span
sinner Rainbow/code>,
,其次大约为10-20倍。 (见,有关网页;最新情况是关于右上角的X/Z指标。)>mousemove
。 该申请是Leaflet地图。 当潮湿时,当动物循环、pan积和装料时,会出现明显的滞后期。 我只需要更新<代码>span
推迟和(或)推迟使用何种最佳方式? 是否对更新<条码>内/超文本代码>足够好? Can 在时间过后,我没有登记和重新登记活动?
修改该期限的文字节点将比修改内部超文本更为有效。
function mouseMoveAction(ev) {
span.firstChild.data = new Date.toString();
}
但是,如果案文节点赢得一定满足要求,而且你需要关于停用的超文本,那么你就可以在花招手中使用门槛值。
/* Keep CPUs to a minimum. */
var MOUSE_MOVE_THRESHOLD = 25,
lastMouseMoveTime = -1;
function mousemoveCallback(ev) {
var now = +new Date;
if(now - lastMouseMoveTime < MOUSE_MOVE_THRESHOLD)
return;
lastMouseMoveTime = now;
mouseMoveAction(ev);
}
避免 j等;无谓地使事情更加缓慢,变得更加复杂。
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