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Goal is to use Jasmine 5 native ES module support with package.json "type": "module" and a jasmine.json config file in both local development and CI pipelines. Jasmine 5 loads the config via dynamic import(). Node.js 18.19+ stabilizes ESM without flags, while Node 16/17 require --experimental-vm-modules for ESM config loading. The Jasmine CLI does not auto-d
Goal Diagnose a failed deployment that stops at build time when Bun’s bundler encounters a CommonJS module or a circular ES module dependency. Constraints Bun’s bundler accepts only ES modules; attempting to import a CommonJS module (e.g., require('fs') ) during bun build triggers a compile‑time error. Dynamic imports must use a literal string; import(module
Vite's development server defaults to binding `localhost` when no `server.host` value is provided in `vite.config.js`. This behavior aims to restrict access to the local machine during local development. However, the precise mechanism governing the default address resolution—and whether it can shift under certain configurations—remains a point of clarificati
Goal We want to load external JSON data with d3.json in a D3 v7 application that is bundled as ES modules and served from a subpath in production. The same code works fine on a local dev server. Constraints & Uncertainty D3 v7 ships only as named ES module exports; a global d3 object is no longer available unless a UMD build is explicitly loaded. Data re
Diagnose whether Jest mock hoisting behaves consistently for ES modules when tests import mocked bindings using namespace syntax. Jest hoists jest.mock() calls above imports to allow module mocking, but ES module interop changes evaluation order. It is uncertain whether behavior is consistent across supported Jest versions, and whether top-level mock state p
Problem Context Swiper 8 introduced ES‑module distribution and required explicit registration of components such as Pagination and Navigation. A side effect of the loop‑mode refactor is that when slidesPerGroup is greater than one and the total number of slides is not a multiple of that group size, the automatic duplication of slides can leave a visual gap o
Goal: Determine whether @babel/preset-env with modules set to "auto" preserves ES import/export syntax or converts it to CommonJS in a given build pipeline. Constraint: Babel 7.x defaults modules to "auto", which defers the module transform decision to the calling tool. The Babel CLI may resolve auto to CommonJS, while Rollup or webpack configured for ES mod
This build configures Rollup to tree-shake an ES-module bundle for a low-traffic site. The goal is to confirm that unused exports are removed based on side-effect analysis, and to understand whether retained code is expected behavior or a configuration gap. Rollup documentation indicates tree-shaking depends on accurate side-effect detection for imported fil
bun
vitejs
jest
swiper
rollup
nodejs