How to use the node command to start modifying the port

This time I will show you how to use the node command to start and modify the port. What are the precautions for using the node command to start and modify the port. The following is a practical case, let's take a look.

Instructions

app.js

var port = process.env.PORT || 7777
app.listen(port)

Command line operation

PORT=9090 node app.js

Set variable in front

I believe you have mastered the method after reading the case in this article. For more exciting things, please pay attention to php Other related articles on the Chinese website!

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