Automate module install by Package.json
package.json is what
bg
In remote work, I have a chance
to touch node js work.
That means I have to use npm model.
Yeah, chance
, that is the point. I had to use that,
but this, taught me. How to use and understand this.
Thanks to the P.M.
I got this error for just installing modules by npm.
what is the package.json
- It is modules list, for example: (crypto, node-rsa,)
- It shows dependencies and Dev dependecies.
dif between README.md
For just modules list, we have a README.md
.
How about writing modules here, instead of using
package.json
?
No. That json file does much more.
Auto writing modules list
when installing another modules in need, appeding --save
After npm inti
and return return return return return......
npm install --save pbkdf2
{ "name": "ls", "version": "1.0.0", "description": "## pushing test", "main": "index.js", "scripts": { "test": "echo \"Error: no test specified\" && exit 1" }, "author": "", "license": "ISC", "dependencies": { "pbkdf2": "^3.0.17" } }
It writes module dependencies list in json!!!
And this enable install everything on this list
by just npm --install
.
Conclusion
- In Node, npm, package.json is useful.
- It written automatically, adding
--save
when install modules. - And it enable install everything in the json just
npm install
Use package.json