All Questions
419
questions
3015
votes
32
answers
2.2m
views
Find the version of an installed npm package
How can I find the version of an installed Node.js or npm package?
This prints the version of npm itself:
npm -v <package-name>
This prints a cryptic error:
npm version <package-name>
...
- 33.2k
1268
votes
18
answers
513k
views
What is the difference between --save and --save-dev?
What is the difference between:
npm install [package_name]
and:
npm install [package_name] --save
and:
npm install [package_name] --save-dev
What does this mean? And what is really the effect of --...
- 12.8k
1044
votes
19
answers
773k
views
How to list npm user-installed packages?
How do I list the user-installed / environment package only in npm?
When I do npm -g list, it outputs every package and their dependencies. Instead I'd like to see the packages installed in the ...
- 17k
782
votes
8
answers
578k
views
How can I specify the required Node.js version in package.json?
I have a Node.js project that requires Node version 12 or higher. Is there a way to specify this in the packages.json file, so that the installer will automatically check and inform the users if they ...
- 35.9k
679
votes
11
answers
571k
views
Installing a local module using npm?
I have a downloaded module repo, I want to install it locally, not globally in another directory?
What is an easy way to do this?
- 50.6k
526
votes
16
answers
1.0m
views
How to clean node_modules folder of packages that are not in package.json?
Assume I install project packages with npm install that looks into package.json for modules to be installed. After a while I see that I don't need some specific module and remove its dependency from ...
- 53.1k
389
votes
16
answers
275k
views
How to install a private NPM module without my own registry?
I've taken some shared code and put it in an NPM module, one I don't want to upload to the central registry. The question is, how do I install it from other projects?
The obvious way is probably to ...
- 8,368
233
votes
10
answers
123k
views
NodeJS require a global module/package
I'm trying to install globally and then use forever and forever-monitor like this:
npm install -g forever forever-monitor
I see the usual output and also the operations that copy the files to the ...
- 14.8k
205
votes
6
answers
136k
views
Npm install failed with "cannot run in wd"
I am trying to get my node environment set up on a new Ubuntu 12.04 instance, with Node 0.8.14 already installed, but I ran into problems when I try to run npm install.
So when I try npm install, it ...
- 3,381
190
votes
14
answers
147k
views
Node package ( Grunt ) installed but not available
I'm trying to build a github jquery-ui library using grunt, but after running npm install I still can't run the command according to the readme file. It just gives No command 'grunt' found:
james@...
- 27.8k
163
votes
9
answers
122k
views
Download source from npm without installing it
How can I download the source code of a package from npm without actually installing it (i.e. without using npm install thepackage)?
- 1,942
153
votes
8
answers
208k
views
Print a list of all installed node.js modules
In a node.js script that I'm working on, I want to print all node.js modules (installed using npm) to the command line. How can I do this?
console.log(__filename);
//now I want to print all ...
- 31.4k
138
votes
5
answers
184k
views
How to install a node.js module without using npm?
There are quite a few modules which are listed on node's github page but are not published with the npm-registry. These modules can't be installed using npm.
What is the correct way to install these ...
- 3,904
111
votes
3
answers
21k
views
What are `rc` files in nodejs?
I have some questions regarding various rc files in a typical node application, like .npmrc, .babelrc etc.
What is an rc file, I know its a runtime-config for the module, but anything else?
Does the ...
- 2,391
90
votes
3
answers
90k
views
Installing "global" npm dependencies via package.json [duplicate]
I have a few "global" dependencies (jshint, csslint, buster, etc..) that I'd like to have automatically installed and executable via the command line when my package is installed via npm install. Is ...
- 5,098
83
votes
8
answers
30k
views
Difference between a module and a package in Node.js?
I am new to Node.js. What is the difference between a "package" and a "module" in Node.js?
- 6,421
66
votes
3
answers
38k
views
Install a locally developed npm package globally
I'm developing a node package that needs to be run from shell. I know I have to install the package globally, but running
$> npm install -g ./my_module
Does not give me the desired result, that ...
- 3,460
64
votes
2
answers
32k
views
what does grunt "test command" do on npm init
I'm trying to learn grunt. When I run npm init, I get a prompt in the process of creating a package.json file that asks for "test command" - I'm not sure how to utilize this, or what it's expecting. ...
- 30k
63
votes
8
answers
67k
views
Global NPM package installed but command not found
I have globally installed two npm packages "download" and "enigmavirtualbox" via command line:
npm install -g download and
npm install -g engimavirtualbox
I'm trying to use them in a batch file to ...
- 1,837
51
votes
3
answers
23k
views
Is Lerna needed anymore with NPM workspaces?
Is Lerna needed anymore with NPM 7.0.0 workspaces?
I don't really have experience with this new npm feature.
npm/RFCs writes:
First and foremost there’s the alternative of leaving the problem set
for ...
- 651
48
votes
3
answers
38k
views
NPM package 'bin' script for Windows
Cucumber.js is supplying a command-line "binary" which is a simple .js file containing a shebang instruction:
#!/usr/bin/env node
var Cucumber = require('../lib/cucumber');
// ...
The binary is ...
- 1,647
43
votes
10
answers
113k
views
Package is not publishing to npm (not in the npm registry)
I would like to publish my git repository to npm so I can use it in other projects. But when I run the npm publish command I get the following error:
npm ERR! code E404
npm ERR! 404 Not Found - PUT ...
- 876
35
votes
7
answers
20k
views
Can I run a private npm repository without replicating the public repository?
I'm writing a number of pieces of code (for internal use) using node.js and want to store the modules (packaged up for npm) in a package repository for each distribution to the various machines they ...
- 935k
31
votes
4
answers
23k
views
How to automatically copy files from package to local directory via postinstall npm script?
I want to automatically copy certain files from an npm package to user's local directory after running
npm install my-package
I can get them installed by declaring "files" inside package.json. The ...
- 13.9k
25
votes
1
answer
7k
views
How do I see the release notes for an npm package before I upgrade?
Does the npm registry expose release notes in a standardized way? I've seen release notes in:
The README.md
On GitHub as a tagged release with no description
On GitHub as a tagged release with a ...
- 1,952
23
votes
5
answers
45k
views
Using npm how can I download a package as a zip with all of its dependencies included in the package
What I'm trying to do is download packages with all their dependencies, in order to transfer them to another computer that does not have an internet connection and install it there.
So the scenario ...
- 1,428
22
votes
3
answers
26k
views
Use npm package on client side
is there a way I can use an npm package on the client side? For example, I want to use the dateformat(https://www.npmjs.com/package/dateformat) package in my client side javascript file
- 13.6k
18
votes
1
answer
10k
views
Create npm package using webpack
I'm creating an npm package and using webpack for loader like babel, eslint etc.. However I'm under assumption that final compiled version of the package should only contain that one module, without ...
- 897
15
votes
4
answers
52k
views
The engine "node" is incompatible with this module. Expected version "12.x". Got "14.8.0"
I try to do a yarn add, but I have this error:
The engine "node" is incompatible with this module. Expected version "12.x". Got "14.8.0"
- 749
15
votes
3
answers
49k
views
How to run start scripts from package.json?
I've two scripts in package.json
"start:dev": "nodemon ./src/index.js",
"start": "npm run build && node ./build/index.js",
npm start works well.
I need to run "start:dev": "nodemon ./src/...
- 662
15
votes
3
answers
23k
views
Where does node.js put its files?
I have recently started playing with node.js, but I got lost in a big mess of different versions of node, npm, nvm and other packages. I don't know what is installed globally and what is installed ...
- 12.2k
14
votes
7
answers
13k
views
How can I update all npm packages/modules at once?
I'm struggling to find a way to update all npm packages in one go, some articles suggest that package.json file should be edited where all version numbers need to be changed to * therefore forcing ...
- 45.7k
14
votes
6
answers
15k
views
Error publishing a new version of a package in npm
I'm trying to republish a package using npm. I did update the package version in package.json, yet I get the following error:
npm ERR! publish Failed PUT 404
npm ERR! Windows_NT 6.3.9600
npm ERR! ...
- 3,349
14
votes
4
answers
8k
views
How to write Git hash to (node's) package.json?
is there a way to automatically update version number of a package.json (https://npmjs.org/doc/json.html) with the HEAD hash of git? I would like to have something like version: 1.0.0+...
- 16.7k
14
votes
2
answers
14k
views
What's an npm command to install devDependencies globally?
I'd prefer to type a short command, like npm install -g, to setup a project's global dependencies, such as node-sass and jshint, than manually typing out npm install -g every single package. Is there ...
- 681
13
votes
2
answers
7k
views
Change root directory on npm publish
Is it possible to change the root directory of my Node.js npm package when I do a publish? What I have is following:
├── lib
├── package.json
├── .npmignore
├── src
│ ├── index.js
│ └── sub
│ ...
- 1,137
12
votes
2
answers
7k
views
Node.js: Get (absolute) root path of installed npm package
Task
I'm looking for an universal way to get the (absolute) root path of an installed npm package in Node.js.
Problem
I know about require.resolve, but that will give me the entry point (path to ...
- 3,319
12
votes
0
answers
662
views
Should polyfills be a dependency or a devDependency?
As explained by this SO post, polyfills should be in the dependency folder.
However, the Array.find() polyfill has the following installation instructions.
npm install --save-dev jspolyfill-array....
- 7,403
11
votes
2
answers
11k
views
Module vs. Dependency vs. Library vs. Package vs. Component
I understand that packages hold several modules, but I'm starting to get confused as to if packages and modules are dependencies. Also, libraries to me maybe seem like packages you install via NPM, ...
- 131
11
votes
1
answer
4k
views
Webpack - No Output File, No Errors Reported
I am learning Webpack and going through it again and again. In the latest build, there is something very strange going on. CLI reports everything is well & the output file dress_aphrodite.js is ...
- 15.3k
10
votes
1
answer
14k
views
Use auth token to query a private NPM registry for a given package version, but without filesystem access?
The purpose of this effort is to be able to test whether a package version exists in a private registry, without having to touch the filesystem / config files. For packages in public registries this ...
- 11.6k
10
votes
4
answers
10k
views
Check package version at runtime in nodejs?
I have some of my entries in package.json defined as "*"
"dependencies": {
"express": "4.*",
"passport": "*",
"body-parser": "*",
"express-error-handler": "*"
},
I wan't to freeze ...
- 44.7k
10
votes
2
answers
14k
views
Where to put frontend javascript configuration variables
I have a Javascript frontend that does Ajax calls to my backend. To do that, it needs a "backend_URL" that I hard-coded in the Ajax get() call, say "http://myservice/backend".
Now if I want to ...
- 7,213
10
votes
6
answers
4k
views
npm installs many dependencies
I bought an HTML template recently, which contains many plugins placed inside a bower_components directory and a package.js file inside. I wanted to install another package I liked, but decided to use ...
- 1,009
9
votes
6
answers
27k
views
What needs to change in this package.json file to work with npm 0.3.0?
Trying to use a lib but getting this error...
npm ERR! JSON.parse Failed to parse package.json data.
npm ERR! JSON.parse Note that package.json must be actual JSON, not
npm ERR! JSON.parse just a ...
- 50.6k
9
votes
2
answers
9k
views
I published one package on npm, but it's not showing in the search list when i am going to search
I published one package as a public & i am trying to search it on npm
(https://www.npmjs.com/), but there is no package available with that name on npm.
Tried with:
npm install package-name ->...
- 308
9
votes
5
answers
42k
views
How to install nodejs and npm on windows using command lines
I am creating a package installer which has nodejs, redis, and socket.io as prerequisites. The problem is that I don't want the developers to install the prerequisites own their own.
I figured out a ...
- 1,721
9
votes
1
answer
2k
views
Node: check latest version of package programmatically
I'd like my node package (published on npm) to alert the user when a new version is available. How can i check programmatically for the latest version of a published package and compare it to the ...
- 58.3k
9
votes
2
answers
3k
views
Creating NPM packages, how to document them?
I'm in the process of creating a few NPM packages and I'd like to know what are the best practices to write the user documentation for them (as there's very little information, and searching for ...
- 75.4k
9
votes
4
answers
31k
views
Cannot Install NPM Package - Code 128 An unknown git error occurred
I'm trying to install the package @truffle/hdwallet-provider .
As written in the doc, I'm running:
npm i @truffle/hdwallet-provider
Here is the error message I'm getting:
npm ERR! code 128
npm ERR! ...
- 1,711