即使刷新页面也如何保持倒数计时器的时间

Question

我在Java脚本中有倒数计时器，即使页面刷新后，我也想保留倒数时间，能否请您建议我必须遵循的方向

Answer 1

Don't use cookies, because they add unnecessary overhead to your page requests.

Use localStorage instead ( compatibility table ( polyfills )):

var countdowntimervalue = 100;                            // Some variable
localStorage.setItem('timer_value', countdowntimervalue); // <-- Set the value

To get the value at a later point use:

var saved_value = localStorage.getItem('timer_value');

Answer 2

使用cookie设置时间戳，然后在将来的页面加载中引用该时间戳。