After entering the factory, found that a lot of big bosses have their own scaffolding, attracted countless small white envy of the eyes

As a programmer with dreams, how can not have their own exclusive scaffolding, open!!

Me: the man who has his own scaffolding is the most handsome programmer in the world

Girlfriend: Speechless ing

Me: First of all, let’s build a folder, called cliDemo, and then enter the folder, use the command line

NPM init -y // Use default SettingsCopy the code

A package.json file comes out from the folder

Add bin to package.json

Girlfriend: What’s bin for

Me: It is to write an internal command, such as I wrote ‘ws’, the right side is the command corresponding to the file to execute

So we create a bin folder in the root directory, and write main.js to the folder, in main.js

#! /usr/bin/env nodeCopy the code
#! /usr/bin/env this line of code is used when the system is running on this line to look up the node configuration and call the corresponding interpreter to run the subsequent node programCopy the code

Then write to main.js

console.log('hello ws');
Copy the code

The key to asynchrony comes from typing on the command line

npm link
Copy the code

Girlfriend: What is NPM link

Me: He just installed our WS command globally so that we could use it elsewhere and execute it on the command line

ws
Copy the code

Our console.log statement comes out, isn’t it amazing

If you have any problems with the code above, please leave a comment in the comments section. If it is useful, please give a thumbs up

To be continued

reference

How to build your own scaffolding