# franciscop/ola

🌊 Smooth animation library for interpolating numbers

Repository: https://github.com/franciscop/ola
Canonical: https://ross.abutalabs.com/products/ola
Language: JavaScript
License: MIT
License Family: permissive
Last push: 2025-03-02T15:40:25+00:00

## Health v2 (maintenance only)
Score: 36/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 9, release rhythm 35, longevity 100
- inputs: {"age_days": 2672, "days_push": 549, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1809, forks 32 (observed 2026-08-28T04:05:39.442687+00:00)

## What it is
Ola is a small JavaScript library for smoothly interpolating (tweening) numbers in real time. It supports single numbers, named multi-dimensional values, and arrays of values, updating asynchronously so reads always return the current animated value.

## Use cases
- smoothly animate a number or position over time in the browser
- interpolate multi-dimensional values like x/y coordinates for a moving element
- tween hundreds of independent values efficiently for canvas or DOM animations
- replace manual easing/tweening code with a simple set-and-read API

## When to choose
- you need lightweight realtime numeric interpolation rather than a full animation framework
- you want to animate many independent values (arrays, objects) with minimal overhead
- you prefer a tiny dependency-free library usable via npm or CDN

## When to avoid
- you need CSS/DOM element animations, keyframes, or timelines - use a full animation library instead
- you need easing functions, springs, or complex choreography beyond simple interpolation
- your project is not JavaScript/browser-based

## Facets
- artifact type: library
- maturity: active
- function: animation
- domain: web-development, frontend, graphics
- platform: browser
- tags: interpolation, tweening, realtime-animation, numbers, inbetweening, nodejs, javascript

## Member repositories
- franciscop/ola (main) score 36

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:39.442687+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:21:19.534978+00:00, confidence not recorded.
  - readme: https://github.com/franciscop/ola (fetched 2026-08-28T04:05:39.442687+00:00, sha 701b7f811dc1)
  - registry_npm: https://registry.npmjs.org/ola (fetched 2026-08-29T11:00:15.058375+00:00, sha 6a8957f93ce7)
- Data as of 2026-08-30T08:39:29.467469+00:00.