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Package Jason: your friend who knows about package.json

Do you want to see the deep tree of dependencies of any package? Ask Jason, he knows everything about the package.json files!

Package Jason is a tool that scans recursively all dependencies of a given package and generates a tree that shows all nested dependencies.

For example, let's scan react package:

const packageJason = require("package-jason");
const result = await packageJason("react");

You will get a JSON tree and meta data about the packages scanned:

  • total: total number of packages found during the scanning process (10 packages)
  • count: number of unique packages found, because the same package can be included by several sub-dependencies (7 packages)
{
  "tree": {
    "name": "react",
    "version": "16.5.2",
    "children": [
      {
        "name": "loose-envify",
        "version": "1.4.0",
        "children": [
          {
            "name": "js-tokens",
            "version": "4.0.0"
          }
        ]
      },
      {
        "name": "object-assign",
        "version": "4.1.1"
      },
      {
        "name": "prop-types",
        "version": "15.6.2",
        "children": [
          {
            "name": "loose-envify",
            "version": "1.4.0",
            "children": [
              {
                "name": "js-tokens",
                "version": "4.0.0"
              }
            ]
          },
          {
            "name": "object-assign",
            "version": "4.1.1"
          }
        ]
      },
      {
        "name": "schedule",
        "version": "0.5.0",
        "children": [
          {
            "name": "object-assign",
            "version": "4.1.1"
          }
        ]
      }
    ]
  },
  "meta": {
    "count": 7,
    "total": 10
  }
}

Compatibility

Package Jason runs on Node.js 10+.

This is a package for the Node.js only, not for the browser.

Testing

Test suite

npm test

Testing any package from the command line:

node cli <package-name>

Credits

Package Jason relies on package-json package from the great Sindre Sorhus.

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Package Jason: your friend who can see the deep tree of NPM dependencies. Ask Jason!

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