Class AssetCollection<T>

A typed, iterable collection keyed by a string identifier.

Used for all top-level collections on AddOn (addon.items, addon.entities, addon.recipes, etc.). Provides both map-style lookups and array-style helpers without conversion overhead.

Example

// Map-style lookup — O(1)
const spear = addon.items.get("mypack:copper_spear");

// Array-style helpers
const withTexture = addon.items.filter(i => i.texture !== undefined);
const ids = addon.items.map(i => i.id);

// Grouping by namespace
const byNs = addon.items.groupBy(i => i.id.split(":")[0]);
// { "minecraft": [...], "mypack": [...] }

// Iterable
for (const item of addon.items) { … }
const arr = [...addon.items];

Type Parameters

Implements

Iterable<T>

Index

Accessors

size

Methods

[iterator] all entries every filter find get groupBy has keys map reduce some values

Accessors

size

get size(): number
The number of assets in this collection.

Returns number
- Defined in src/asset.ts:95

Methods

[iterator]

"[iterator]"(): Iterator<T>
Returns Iterator<T>
Implementation of Iterable.[iterator]
- Defined in src/asset.ts:185

all

all(): T[]
Returns a plain array of all assets in insertion order.

Returns T[]
- Defined in src/asset.ts:109

entries

entries(): IterableIterator<[string, T]>
All [key, asset] pairs in insertion order.

Returns IterableIterator<[string, T]>
- Defined in src/asset.ts:104

every

every(predicate: (asset: T, key: string) => boolean): boolean
Returns true if every asset satisfies predicate.
Parameters
- predicate: (asset: T, key: string) => boolean
Returns boolean
- Defined in src/asset.ts:143

filter

filter(predicate: (asset: T, key: string) => boolean): AssetCollection<T>
Returns a new AssetCollection containing only assets for which predicate returns true.
Parameters
- predicate: (asset: T, key: string) => boolean
Returns AssetCollection<T>
- Defined in src/asset.ts:115

find

find(predicate: (asset: T, key: string) => boolean): T
Returns the first asset satisfying predicate, or undefined.
Parameters
- predicate: (asset: T, key: string) => boolean
Returns T
- Defined in src/asset.ts:131

get

get(key: string): T
Returns the asset with the given key, or undefined if not present.
Parameters
- key: string
Returns T
- Defined in src/asset.ts:89

groupBy

groupBy<K extends string>(keyFn: (asset: T, key: string) => K): Record<K, T[]>
Groups all assets by a derived key. Returns a plain Record where each value is an array of assets sharing that group key.
Type Parameters
- K extends string
Parameters
- keyFn: (asset: T, key: string) => K
Returns Record<K, T[]>
Example
```
// Group items by namespace
const byNamespace = addon.items.groupBy(item => item.id.split(":")[0]);
// { "minecraft": [...], "mypack": [...] }
```
- Defined in src/asset.ts:173

has

has(key: string): boolean
Returns true if an asset with the given key exists in this collection.
Parameters
- key: string
Returns boolean
- Defined in src/asset.ts:92

keys

keys(): IterableIterator<string>
All keys in insertion order.

Returns IterableIterator<string>
- Defined in src/asset.ts:98

map

map<U>(fn: (asset: T, key: string) => U): U[]
Maps each asset to a value and returns the results as a plain array.
Type Parameters
- U
Parameters
- fn: (asset: T, key: string) => U
Returns U[]
- Defined in src/asset.ts:124

reduce

reduce<U>(fn: (acc: U, asset: T, key: string) => U, initial: U): U
Reduces all assets to a single accumulated value.
Type Parameters
- U
Parameters
- fn: (acc: U, asset: T, key: string) => U
- initial: U
Returns U
Example
```
const totalTiers = addon.trading.reduce((sum, t) => sum + t.tiers.length, 0);
```
- Defined in src/asset.ts:156

some

some(predicate: (asset: T, key: string) => boolean): boolean
Returns true if at least one asset satisfies predicate.
Parameters
- predicate: (asset: T, key: string) => boolean
Returns boolean
- Defined in src/asset.ts:137

values

values(): IterableIterator<T>
All assets in insertion order.

Returns IterableIterator<T>
- Defined in src/asset.ts:101

Class AssetCollection<T>

Example

Type Parameters

Implements

Index

Accessors

Methods

Accessors

size

Returns number

Methods

[iterator]

Returns Iterator<T>

all

Returns T[]

entries

Returns IterableIterator<[string, T]>

every

Parameters

Returns boolean

filter

Parameters

Returns AssetCollection<T>

find

Parameters

Returns T

get

Parameters

Returns T

groupBy

Type Parameters

Parameters

Returns Record<K, T[]>

Example

has

Parameters

Returns boolean

keys

Returns IterableIterator<string>

map

Type Parameters

Parameters

Returns U[]

reduce

Type Parameters

Parameters

Returns U

Example

some

Parameters

Returns boolean

values

Returns IterableIterator<T>

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