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lib-streak-math

v1.0.0

Published

Dependency-free calendar-day bucketing and streak math primitives, with an optional Node-only on-disk store. Helper for svelte-streak-lib.

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Links

Maintainers

caios_luvcaios_luv

Keywords

streakcalendardayanalytics

Readme

lib-streak-math

Dependency-free calendar-day and streak-math primitives. This is the helper package behind svelte-streak-lib; it is not meant to be imported directly from application code.

API

import { dayKey, addDays, dayDiff, bucketByDay, qualifyingDayKeys } from 'lib-streak-math';
import { store } from 'lib-streak-math/store'; // Node-only
  • dayKey(date, timeZone?) → "YYYY-MM-DD"
  • addDays(key, n) → shifted day key
  • dayDiff(aKey, bKey) → whole-day difference
  • bucketByDay(entries, timeZone?) → Map<dayKey, total>
  • qualifyingDayKeys(entries, goal, timeZone?) → sorted day keys meeting the goal