Protocols

A JavaScript expression that can be evaluated inside of a web view (WKWebView).

The library provides ready-to-use expression implementations:

• JSVariable to access a variable
• JSFunction to call a function
• JSScript to run a custom script

You don’t need to implement this protocol yourself.

Expressions are specialized with the ReturnType associated type. Expressions can return any Decodable type. This includes:

• JSVoid for expressions that do not return a value
• Primitive values (Strings, Numbers, Booleans, …)
• Decodable enumerations
• Objects decodable from JSON
• Arrays of primitive values
• Arrays of enumeration cases
• Arrays of objects
• Native dictionaries

See more

public protocol JSExpression