Easy Reusable Arrays in JavaScript

array-allocator is useful when you need to create and reuse temporary numeric arrays.

Usage

Allocate and free numeric arrays

Allocate an arr array with length of 42 elements.

When you call free(arr), it only marks the array as "free". If you later request an array with the same length, array-allocator will return the same reference.

import {alloc, free} from "array-allocator";

const arr: number[] = alloc(42);

console.log(arr.length); // => 42

// ...

free(arr);

const brr: number[] = alloc(42);
console.log(arr === brr); // => true

// ...

free(brr);

Release allocated resources

import {alloc, free, compact} from "array-allocator";

const arr: number[] = alloc(42);
free(arr);

// ...

compact();

Exported methods

/**
 * Allocates a resource
 */
function alloc(arrLen: number): number[]

/**
 * Marks an allocated resource "free"
 */
function free(arrRef: number[]): void

/**
 * Deallocated freed resources
 */
function compact(): void