# undelegateResource

The interface used to revoke delegated resource, which can specify the number of revoked resources. (v5.1.0 new interface)

## Usage

``` javascript
tronWeb.transactionBuilder.undelegateResource(amount, receiverAddress, resource, address, options);
```

## Parameters
| Parameters         | Description                                                         | Type   |
| ------------------ | ------------------------------------------------------------------- | ------ |
| amount             | the amount of assets to be revoked (sun), larger than 0		       | String |
| receiverAddress    | the account address to receive revoked delegation (base58 or hex)   | String |
| resource           | asset type of revoked delegation, optional BANDWIDTH or ENERGY      | String |
| address            | the account address of the revoked delegation asset (base58 or hex) | Number |
| options            | optional fields	                                                   | Number |

## Returns

Object

## Example

``` javascript
> const transaction = await tronWeb.transactionBuilder.undelegateResource(10e6, 'receiverAddress', 'BANDWIDTH', 'TMVQGm1qAQYVdetCeGRRkTWYYrLXuHK2HC');
```