Utilities

These utilities are used extensively within the library, but are also quite useful for application developers.

Application Binary Interface
AbiCoder
Creating Instance
Coding Methods
ABI Formats
Human-Readable ABI
Solidity JSON ABI
Solidity Object ABI
Converting Between Formats
Fragments
Formats
Fragment
ConstructorFragment
ErrorFragment
EventFragment
FunctionFragment
ParamType
Interface
Creating Instances
Properties
Formatting
Fragment Access
Signature and Topic Hashes
Encoding Data
Decoding Data
Parsing
Types
Specifying Fragments
Addresses
Address Formats
Converting and Verifying
Derivation
Contracts Addresses
BigNumber
Types
Creating Instances
Methods
Notes
Byte Manipulation
Types
Inspection
Converting between Arrays and Hexstrings
Array Manipulation
Hexstring Manipulation
Signature Conversion
Random Bytes
Constants
Bytes
Strings
BigNumber
Display Logic and Input
Units
Functions
Encoding Utilities
Base58
Base64
Recursive-Length Prefix
FixedNumber
Creating Instances
Properties
Methods
FixedFormat
Hashing Algorithms
Cryptographic Hash Functions
HMAC
Hashing Helpers
Solidity Hashing Algorithms
HD Wallet
Types
HDNode
Other Functions
Logging
Logger
Errors
Log Levels
Property Utilities
Signing Key
Other Functions
Strings
Bytes32String
UTF-8 Strings
UnicodeNormalizationForm
Custom UTF-8 Error Handling
Transactions
Types
Functions
Web Utilities
Wordlists
Wordlist
Languages