@azusfin/structures

Implementations of Data Structures

A static-length array to work with bytes in bit-level

import { BitSet } from "@azusfin/structures"

const bitsAmount = 64
const bitSet = new BitSet(bitsAmount)

const index = 31
bitSet.set(index)

bitSet.get(31) // true
bitSet.get(4) // false

bitSet.flip(31)
bitSet.flip(4)

bitSet.get(31) // false
bitSet.get(4) // true

bitSet.clear(31)
bitSet.clear(4)

bitSet.get(31) // false
bitSet.get(4) // false

Uint4Array

An array where each element occupies 4 bit unsigned integer from 0 to 15

import { Uint4Array } from "@azusfin/structures"

const length = 8
const array = new Uint4Array(length)

const offset = 3
array.set(offset, 12)
array.set(1, 6)
array.set(5, 3)

array.get(offset) // 12
array.get(1) // 6
array.get(5) // 3

A subtype of Uint4Array with support of 4 bit signed integer from -8 to 7

import { Int4Array } from "@azusfin/structures"

const length = 8
const array = new Int4Array(length)

const offset = 3
array.set(offset, -4)
array.set(1, -8)
array.set(5, 3)

array.get(offset) // -4
array.get(1) // -8
array.get(5) // 3