webpack-jarvis

library0.3.2jsnpmunverified

A webpack dashboard that runs in the browser, providing real-time insights into your build process including ES harmony module counts, asset performance across connection types, and beautified error output with Google/Stackoverflow search. Current version 0.3.2 (beta), last updated in 2018, with no active development. It uses a Preact-based client, Socket.IO for real-time communication, and a Polka server. Unlike other webpack dashboards, it offers unique features like treeshakability analysis and integrated error search. Requires webpack as a peer dependency.

devops

npm install webpack-jarvis

github ↗package ↗

INSTALL

IMPORT

SIG · WEBPACK-JARVIS

webpack-jarvis

devopsjavascriptv0.3.2

Install

—

Import

—

Disk

—

Pass rate

0/ 6

Env Coverage0 / 6

glibc

18–22

musl

18–22

Install & Compatibility

Where this runs

tested against v? · npm install

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

node 18–226 runs

build_error

glibc

node 18–226 runs

build_error

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

Jarvis

✓ const Jarvis = require('webpack-jarvis');

✗ import Jarvis from 'webpack-jarvis';

Package is CJS-only; ESM import may fail in Node.js environments.

Jarvis

✓ plugins: [new Jarvis({ port: 1337 })]

✗ plugins: [Jarvis({ port: 1337 })]

Must be instantiated with 'new' as it is a class.

Jarvis

✓ const Jarvis = require('webpack-jarvis');

✗ const { Jarvis } = require('webpack-jarvis');

Export is a single class, not named export.

Configures Jarvis as a webpack plugin with all options, enabling the browser dashboard on localhost:1337 during development.

// webpack.config.js const path = require('path'); const Jarvis = require('webpack-jarvis'); module.exports = { entry: './src/index.js', output: { filename: 'bundle.js', path: path.resolve(__dirname, 'dist'), }, plugins: [ new Jarvis({ port: 1337, host: 'localhost', watchOnly: true, packageJsonPath: process.cwd(), }), ], };

Debug

Known issues

deprecatedPackage is in beta and no longer maintained; consider alternatives like webpack-bundle-analyzer.

fix

Migrate to webpack-bundle-analyzer or others.

affects: >=0.0.0

gotchaOnly works with webpack 4 and below; not compatible with webpack 5.

fix

Use webpack 4 or switch to a compatible dashboard.

affects: >=0.0.0

gotchawatchOnly defaults to true, so Jarvis will not run for single builds; set to false if needed.

fix

Explicitly set watchOnly: false for non-watch builds.

affects: >=0.0.0

gotchaRunning multiple instances may cause port conflicts if not configured differently.

fix

Assign unique ports via the 'port' option.

affects: >=0.0.0

Errors

Common errors & fixes

Error: Cannot find module 'webpack-jarvis'

Package not installed or not in node_modules.

fix

Run 'npm install --save-dev webpack-jarvis'.

TypeError: Jarvis is not a constructor

Missing 'new' keyword when instantiating.

fix

Use 'new Jarvis(...)' in plugins array.

Module parse failed: Unexpected token (1:0) - You may need an appropriate loader to handle this file type.

Jarvis client code uses JSX/ES6+; requires correct webpack configuration.

fix

Ensure Babel is configured in your webpack setup (unlikely if project is already standard).

Upgrade

Version history

0.3.2latest on npm

Audit

Dependencies

webpackrequiredpeer dependency: required to function as a webpack plugin

Agent activity

20 hits · last 30 days

node

OpenAI (training)

Resources

githubhttps://github.com/zouhir/jarvis ↗

packagehttps://www.npmjs.com/package/webpack-jarvis ↗