Study And Share

’s been added to the  JSVirtualMachine  using  addManagedReference:withOwner  method and has not been removed using the  removeManagedReference:withOwner  method. Otherwise, the  JSManagedValue  gets set to nil, releasing the  JSValue , and is free to be garbage-collected on the JavaScript side. JSExport A  JSValue  can represent and convert all of the JavaScript builtin types to Objective C/Swift and can convert them in the other direction to JavaScript types. However, a  JSValue  can’t convert Objective C/Swift classes to JavaScript objects without help. The  JSExport  protocol provides a way to convert Swift/Objective C classes and their underlying instance methods, class functions, and properties into JavaScript objects. By default when using  JSValues ,  JavascriptCore  will convert a Swift/Objective C class into JavaScript object but will not populate instance methods, class function...