> ## Documentation Index
> Fetch the complete documentation index at: https://voltaire.tevm.sh/llms.txt
> Use this file to discover all available pages before exploring further.

# primitives/NetworkId

> Auto-generated API documentation

[**@tevm/voltaire**](../index.mdx)

***

[@tevm/voltaire](../index.mdx) / primitives/NetworkId

# primitives/NetworkId

## Type Aliases

### NetworkIdType

> **NetworkIdType** = `number` & `object`

Defined in: [src/primitives/NetworkId/NetworkIdType.ts:16](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/NetworkId/NetworkIdType.ts#L16)

Branded NetworkId type - Ethereum network identifier
Wraps a number representing a network ID (different from ChainId)

Network IDs identify different Ethereum networks for peer discovery:

* 1 = Mainnet
* 5 = Goerli (deprecated)
* 11155111 = Sepolia

Note: NetworkId is NOT the same as ChainId (EIP-155).
ChainId is used for replay protection in transactions,
while NetworkId is used for peer-to-peer network identification.

#### Type Declaration

##### \[brand]

> `readonly` **\[brand]**: `"NetworkId"`

## Variables

### GOERLI

> `const` **GOERLI**: [`NetworkIdType`](#networkidtype)

Defined in: [src/primitives/NetworkId/constants.js:10](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/NetworkId/constants.js#L10)

***

### HOLESKY

> `const` **HOLESKY**: [`NetworkIdType`](#networkidtype)

Defined in: [src/primitives/NetworkId/constants.js:18](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/NetworkId/constants.js#L18)

***

### MAINNET

> `const` **MAINNET**: [`NetworkIdType`](#networkidtype)

Defined in: [src/primitives/NetworkId/constants.js:6](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/NetworkId/constants.js#L6)

***

### NetworkId

> `const` **NetworkId**: `object`

Defined in: [src/primitives/NetworkId/index.ts:28](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/NetworkId/index.ts#L28)

#### Type Declaration

##### equals()

> **equals**: (`networkId1`, `networkId2`) => `boolean`

###### Parameters

###### networkId1

`number`

###### networkId2

`number`

###### Returns

`boolean`

##### from()

> **from**: (`value`) => [`NetworkIdType`](#networkidtype)

Create NetworkId from number

###### Parameters

###### value

`number`

Network ID number

###### Returns

[`NetworkIdType`](#networkidtype)

Branded network ID

###### Throws

If value is not a non-negative integer

###### Example

```javascript theme={null}
import * as NetworkId from './primitives/NetworkId/index.js';
const mainnet = NetworkId.from(1);
const sepolia = NetworkId.from(11155111);
```

##### toNumber()

> **toNumber**: (`networkId`) => `number`

###### Parameters

###### networkId

`number`

###### Returns

`number`

***

### SEPOLIA

> `const` **SEPOLIA**: [`NetworkIdType`](#networkidtype)

Defined in: [src/primitives/NetworkId/constants.js:14](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/NetworkId/constants.js#L14)

## Functions

### \_equals()

> **\_equals**(`this`, `other`): `boolean`

Defined in: [src/primitives/NetworkId/equals.js:16](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/NetworkId/equals.js#L16)

Compare two NetworkIds for equality

#### Parameters

##### this

[`NetworkIdType`](#networkidtype)

##### other

[`NetworkIdType`](#networkidtype)

Network ID to compare

#### Returns

`boolean`

True if equal

#### Example

```javascript theme={null}
import * as NetworkId from './primitives/NetworkId/index.js';
const a = NetworkId.from(1);
const b = NetworkId.from(1);
const equal = NetworkId._equals.call(a, b); // true
```

***

### \_toNumber()

> **\_toNumber**(`this`): `number`

Defined in: [src/primitives/NetworkId/toNumber.js:14](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/NetworkId/toNumber.js#L14)

Convert NetworkId to number (identity function for branded type)

#### Parameters

##### this

[`NetworkIdType`](#networkidtype)

#### Returns

`number`

Network ID as number

#### Example

```javascript theme={null}
import * as NetworkId from './primitives/NetworkId/index.js';
const netId = NetworkId.from(1);
const num = NetworkId._toNumber.call(netId); // 1
```

***

### equals()

> **equals**(`networkId1`, `networkId2`): `boolean`

Defined in: [src/primitives/NetworkId/index.ts:20](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/NetworkId/index.ts#L20)

#### Parameters

##### networkId1

`number`

##### networkId2

`number`

#### Returns

`boolean`

***

### from()

> **from**(`value`): [`NetworkIdType`](#networkidtype)

Defined in: [src/primitives/NetworkId/from.js:17](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/NetworkId/from.js#L17)

Create NetworkId from number

#### Parameters

##### value

`number`

Network ID number

#### Returns

[`NetworkIdType`](#networkidtype)

Branded network ID

#### Throws

If value is not a non-negative integer

#### Example

```javascript theme={null}
import * as NetworkId from './primitives/NetworkId/index.js';
const mainnet = NetworkId.from(1);
const sepolia = NetworkId.from(11155111);
```

***

### toNumber()

> **toNumber**(`networkId`): `number`

Defined in: [src/primitives/NetworkId/index.ts:16](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/NetworkId/index.ts#L16)

#### Parameters

##### networkId

`number`

#### Returns

`number`