reload process.env variables without reboot

Question

Can we reload environment variables (process.env) with the updated values without restarting the nodejs app or server ?

In other words, I have created a new environment variable (NEW_VARIABLE) and have set a value in my Windows 7 machine. Now I have written a function to read the environment variable as below in my NodeJS application.

setInterval(() => {
    console.log(process.env.NEW_VARIABLE);
}, 5000);

Answer 1

是的，您可以，请参阅下面的代码，我们运行 2 个循环，一个用于读取，另一个用于递增变量。

setInterval(() => {
    process.env.NEW_VARIABLE++;
},
1000);

setInterval(() => {
    console.log(process.env.NEW_VARIABLE);
},
1000);

当您更新变量时，下一次读取将被更新。

除非您使用一些具有缓存行为的软件包，否则我已经在一些软件包中看到了这一点。