Advanced (helping-js/core/advanced)

Binary search, simple LRU-style cache, keyed maps, easing, argument resolution, and optional window load promise.

Imports

import {
  binarySearch,
  ArrayKeyMap,
  Cache,
  attachCache,
  easeInOutQuad,
  resolveArgsByType,
  windowLoaded,
} from 'helping-js/core/advanced'

API

Export	Role
binarySearch(arr, target, compare?)	Index or -1 (numeric order default)
ArrayKeyMap	set(item), get(key) by keyFn(item)
Cache	LRU-ish get/set with max size
attachCache(fn, cache?)	Memoize by JSON.stringify(args)
easeInOutQuad(t)	Easing for t in [0,1]
resolveArgsByType(args, types)	Simple overload-style parsing
windowLoaded()	Resolves when load fired or already complete; no-op in Node

Samples

Sorted array lookup

const idx = binarySearch([1, 3, 5, 7], 5)

Memoize expensive pure function

import { attachCache } from 'helping-js/core/advanced'

const expensive = attachCache((n) => fib(n))

Browser: run after load

import { windowLoaded } from 'helping-js/core/advanced'

windowLoaded().then(() => initCharts())

Express: not applicable for windowLoaded; use Cache / binarySearch in any environment.

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