The commonJS package specification allows us to combine a set of related modules together to form a complete set of tools
Package structure: various files used to organize packages
It is actually a compressed file. After decompression, the directory will be restored. A directory that meets the specification should contain the following files
Required for package.json description file
bin executable binary file
lib js code
doc document
test unit test
Package description file: Describe the relevant information of the package for external reading and analysis
package.json introduction
The role of each attribute in the standard package.json and package.json.
"name"：包名。
"description": Introduction to the package.
"author": package author.
"version": Version number.
"repository": Source code hosting address.
"maintainers": A list of package maintainers, generally composed of three attributes: name, email, and web.
"contributors": List of contributors.
"dependencies": The list of dependent packages needed when the current package is used.
devDependencies: The list of dependencies required for the current package development.
keywords: An array of keywords.
main: The module import entry.
scripts: script description object. Mainly used by package managers to install, compile, test and uninstall packages.
