DevToolbox

Comparing npm Scripts Before and After Refactoring

Track changes to npm scripts when refactoring build pipelines, switching task runners, or updating CI configurations in your project.

Build Configuration

Detailed Explanation

Scripts Section Comparison

The Package.json Diff tool compares the scripts section separately from dependencies, showing added, removed, and modified npm scripts in a dedicated table.

Common scripts refactoring patterns

Adding Turbopack

scripts:
  ~ dev: "next dev" -> "next dev --turbo"     [CHANGED]
    build: "next build"                         [UNCHANGED]
    start: "next start"                         [UNCHANGED]

Switching from Jest to Vitest

scripts:
  - test: "jest"                                [REMOVED]
  - test:watch: "jest --watch"                  [REMOVED]
  - test:coverage: "jest --coverage"            [REMOVED]
  + test: "vitest"                              [ADDED]
  + test:watch: "vitest --watch"                [ADDED]
  + test:coverage: "vitest run --coverage"      [ADDED]

Adding CI/CD scripts

scripts:
  + ci: "npm run lint && npm run test && npm run build"  [ADDED]
  + typecheck: "tsc --noEmit"                            [ADDED]
  + lint:fix: "eslint . --fix"                           [ADDED]

What to check in script changes

Aspect Details
Command names Were scripts renamed? CI may reference old names
Command arguments Were flags or options changed?
New scripts Are they documented in CONTRIBUTING.md?
Removed scripts Are they still referenced in CI configs or documentation?
Script ordering Does the ci script run steps in the right order?

Impact on CI/CD

Script changes directly affect your CI/CD pipeline. Always verify that:

  • GitHub Actions / GitLab CI configs reference the correct script names
  • Pre-commit hooks use the correct lint/format commands
  • Docker build stages use the correct build commands

Use Case

A DevOps engineer is reviewing a PR that refactors the npm scripts to add TypeScript type checking, switch from Jest to Vitest, and add a unified CI script. The Package.json Diff tool shows all script changes clearly so they can update the CI configuration accordingly.

Try It — Package.json Diff

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Related Topics

Comparing devDependency Changes Separately

Development Tooling

ESLint Major Version Migration (v8 to v9)

Framework Migration

Comparing Packages Across Monorepo Workspaces

Monorepo Management

TypeScript Version Upgrade Impact Analysis

Version Analysis

Tracking New Dependencies Added to a Project

Dependency Management