1.参考执行结果
??setTimeout(function () { ???????console.log(‘执行定时任务‘); ???}); ???new Promise(function (resolve) { ???????console.log(‘马上执行for循环‘); ???????for (var i = 0; i < 1000; i++) { ???????????i == 99 && resolve(); ???????} ???}).then(function () { ???????console.log(‘执行then函数‘); ???}) ???console.log(‘代码执行结束‘);
js执行机制(初步)
原文地址：https://www.cnblogs.com/tongbiao/p/9219737.html