Yes, you can deserialize a string into an enum with a different value using interfaces in JavaScript (or TypeScript, which supports enums more explicitly). The concept typically involves defining an interface that maps strings to specific enum values, and then manually handling the mapping during deserialization.
In TypeScript, for instance, enums are a type-safe way to represent a set of named constants. If you're deserializing data (e.g., from JSON) that contains a string that should map to an enum value, you can use interfaces to define how those mappings work.
Example:
enum Status {
Active = "active",
Inactive = "inactive",
Pending = "pending"
}
interface StatusMapping {
[key: string]: Status;
}
// A function that deserializes a string into an enum value
function deserializeStatus(statusString: string): Status | undefined {
const mapping: StatusMapping = {
"active": Status.Active,
"inactive": Status.Inactive,
"pending": Status.Pending
};
return mapping[statusString.toLowerCase()];
}
// Example usage
const statusString = "active"; // This would be received as a string (e.g., from a JSON response)
const statusEnum = deserializeStatus(statusString);
console.log(statusEnum); // Output: Status.Active
You can also refer this
{
enum UserRole {
Admin = 'Administrator',
Editor = 'ContentEditor',
Viewer = 'ReadOnly'
}
interface RoleMapping {
[key: string]: UserRole;
}
const roleMapping: RoleMapping = {
admin: UserRole.Admin,
editor: UserRole.Editor,
viewer: UserRole.Viewer
};
function deserializeRole(roleString: string): UserRole | undefined {
return roleMapping[roleString.toLowerCase()];
}
const input = 'admin'; // Serialized input
const userRole = deserializeRole(input);
console.log(userRole); // Outputs: Administrator
}
