An npm Downloads Comparison Chart in 300 Lines of Vanilla JS — Nice-Tick Math and API-Direct Fetch
A new tool has been developed to compare npm package downloads using vanilla JavaScript. It fetches daily download data from the npm API and displays it in an inline SVG chart without relying on external chart libraries. The tool allows users to select multiple packages and view their download statistics over various time periods.
- ▪The tool overlays up to six npm packages on a single chart.
- ▪It consists of approximately 300 lines of vanilla JavaScript code.
- ▪Users can instantly switch the time range for the download data.
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Story provenance
Attribution is not the same as permission. This drawer separates discovery metadata, excerpts, WeSearch-generated summaries, reuse status, and whether the publisher receives the visit. Nothing here claims a legal grant the publisher has not made.
Record
| Original publisher | DEV.to (Top) |
| Canonical URL | https://dev.to/sendotltd/an-npm-downloads-comparison-chart-in-300-lines-of-vanilla-js-nice-tick-math-and-api-direct-fetch-4kbp |
| Publication time | Sun, 24 May 2026 23:05:39 +0000 |
| Retrieval time | 2026-05-24T23:37:34.938Z |
| Last seen | 2026-05-24T23:37:34.938Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | Q8dqJ8eaimyV |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 3871729) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } SEN LLC Posted on May 24 An npm Downloads Comparison Chart in 300 Lines of Vanilla JS — Nice-Tick Math and API-Direct Fetch #javascript #npm #dataviz #webdev "react vs vue vs svelte vs solid-js — who's actually winning?" This tool answers it. Fetches daily downloads from api.npmjs.org (CORS-enabled, no auth) and overlays up to 6 packages on one inline SVG chart. No chart library. ~300 lines of vanilla JS. The scale + tick math is pure and gets 17 unit tests.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at DEV.to (Top).
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