Skip to main content
Version: v2.x

Minimal Anti Collusion Infrastructure (MACI) v2.2.0 / Ballot

Class: Ballot

A Ballot represents a User's votes in a Poll, as well as their next valid nonce.

Constructors​

new Ballot()​

new Ballot(_numVoteOptions, _voteOptionTreeDepth): Ballot

Create a new Ballot instance

Parameters​

• _numVoteOptions: number

How many vote options are available in the poll

• _voteOptionTreeDepth: number

The depth of the merkle tree holding the vote options

Returns​

Ballot

Defined in​

ballot.ts:23

Properties​

nonce​

nonce: bigint

Defined in​

ballot.ts:14

voteOptionTreeDepth​

voteOptionTreeDepth: number

Defined in​

ballot.ts:16

votes​

votes: bigint[] = []

Defined in​

ballot.ts:12

Methods​

asArray()​

asArray(): bigint[]

Convert in a an array of bigints

Returns​

bigint[]

the ballot as a bigint array

Notice​

this is the nonce and the root of the vote option tree

Defined in​

ballot.ts:52

asCircuitInputs()​

asCircuitInputs(): bigint[]

Convert in a format suitable for the circuit

Returns​

bigint[]

the ballot as a BigInt array

Defined in​

ballot.ts:45

copy()​

copy(): Ballot

Create a deep clone of this Ballot

Returns​

Ballot

a copy of the ballot

Defined in​

ballot.ts:68

equals()​

equals(b): boolean

Check if two ballots are equal (same votes and same nonce)

Parameters​

• b: Ballot

The ballot to compare with

Returns​

boolean

whether the two ballots are equal

Defined in​

ballot.ts:81

hash()​

hash(): bigint

Generate an hash of this ballot

Returns​

bigint

The hash of the ballot

Defined in​

ballot.ts:36

toJSON()​

toJSON(): IJsonBallot

Serialize to a JSON object

Returns​

IJsonBallot

Defined in​

ballot.ts:112

fromJSON()​

static fromJSON(json): Ballot

Deserialize into a Ballot instance

Parameters​

• json: IJsonBallot

the json representation

Returns​

Ballot

the deserialized object as a Ballot instance

Defined in​

ballot.ts:125

genBlankBallot()​

static genBlankBallot(numVoteOptions, voteOptionTreeDepth): Ballot

Generate a blank ballot

Parameters​

• numVoteOptions: number

How many vote options are available

• voteOptionTreeDepth: number

How deep is the merkle tree holding the vote options

Returns​

Ballot

a Blank Ballot object

Defined in​

ballot.ts:104

genRandomBallot()​

static genRandomBallot(numVoteOptions, voteOptionTreeDepth): Ballot

Generate a random ballot

Parameters​

• numVoteOptions: number

How many vote options are available

• voteOptionTreeDepth: number

How deep is the merkle tree holding the vote options

Returns​

Ballot

a random Ballot

Defined in​

ballot.ts:92