Enums
Explore how to use enums in Solidity to create custom types that restrict variables to specific named constants. This lesson helps you understand syntax, declaration, assignment, and conversion of enums, improving your smart contract's robustness and readability.
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Enums, or enumerations, offer a convenient way to establish custom types comprising a set of named constants. Enums come in handy when we wish to define a variable that should only assume one among a small array of potential values. This clarity enhances the safety of our contracts because enums restrict variables to a known set of values and thus reduce the likelihood of errors.
The typical syntax for defining an enum in Solidity looks like this:
enum <EnumName> {Choice1,Choice2,Choice3,// ...}
enum: This keyword tells Solidity that we’re crafting a new enumeration....