Usage

tronWeb.setDefaultBlock('blockID');

Parameters
Possible input values can be 'latest', 'earliest', left blank or block number.

Parameter	Description	Data Type
latest	The reference block is the latest block;	String
earliest	The reference block is the genesis block;	String
left blank	No reference block
block number	The reference block is the corresponding block.	0 or the positive integer

Returns
String

Example

>tronWeb.setDefaultBlock('latest');
'latest'

> tronWeb.setDefaultBlock();
false

> tronWeb.setDefaultBlock('earliest');
'Earliest'

> tronWeb.setDefaultBlock(585367);
undefined