Detailed explanation of the steps to start modifying ports using node command mode

This time I will give you a detailed explanation of the steps for starting and modifying the port using the node command. What are the precautions for starting and modifying the port using the node command. 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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