Function resolveChainId

resolveChainId(chain?: string | number | null): number
Resolve a chain name or numeric chainid to a numeric chainid.
- null / undefined / '' defaults to Ethereum mainnet (1).
- A number, or an all-digit string, is passed through once validated as a positive integer.
- A known name is mapped to its chainid.
- A retired or unknown name throws — silently switching networks on a blockchain client is dangerous (wrong-chain reads look successful).
Parameters
- Optionalchain: string | number | null
Returns number
Throws
If the chain is invalid, retired or unknown.
- Defined in src/chains.ts:63