📅  最后修改于: 2022-03-11 15:02:39.204000             🧑  作者: Mango
var start = new Date().getTime();
for (i = 0; i < 50000; ++i) {
// do something
}
var end = new Date().getTime();
var time = end - start;
alert('Execution time: ' + time);