Value.h

Classes
struct	NullType
	Tag type for the JavaScript null value (see js::null). More...
struct	UndefinedType
	Tag type for the JavaScript undefined value (see js::undefined). More...
class	Value
	A handle to a live JavaScript value. More...
class	Value::Ref
	A reference to a property of a Value (returned by Value::operator[]). More...
class	Arg
	An argument passed to a bound function. More...

Functions
constexpr PropertyAttributes	operator| (PropertyAttributes a, PropertyAttributes b)
	Combine property attribute flags.
bool	operator== (const Value &value, NullType)
	Compare against the JavaScript null literal: if (v == js::null).
bool	operator== (const Value &value, UndefinedType)
	Compare against the JavaScript undefined literal: if (v == js::undefined).
template<typename T>
T	Or (const Value &value, T fallback)
	Convert a value to a C++ type with a fallback (the free-function form of Value::Or()).
std::string	Or (const Value &value, const char *fallback)
	Convert a value to a std::string with a string-literal fallback.
template<typename T>
T	Or (const Arg &arg, T fallback)
	Convert a callback argument to a C++ type with a fallback.
std::string	Or (const Arg &arg, const char *fallback)
	Convert a callback argument to a std::string with a string-literal fallback.
template<typename R, typename T> requires std::is_same_v<std::remove_cvref_t<R>, Result<Value>>
T	Or (const R &result, T fallback)
	Convert the value a call returned to a C++ type with a fallback.
template<typename R> requires std::is_same_v<std::remove_cvref_t<R>, Result<Value>>
std::string	Or (const R &result, const char *fallback)
	Convert the value a call returned to a std::string with a string-literal fallback.
template<typename T, typename U> requires (!std::is_same_v<T, Value>)
T	Or (const Result< T > &result, U &&fallback)
	Get a typed Result's value or fallback if it holds an error.
Value	ExceptionValue (const Error &error)
	Get the value a JavaScript exception threw, to keep it or pass it back to the page.

Variables
constexpr NullType	null {}
	The JavaScript null value.
constexpr UndefinedType	undefined {}
	The JavaScript undefined value.

Namespaces
namespace	ultralight
	Root namespace for every public Ultralight type, function, and enumeration.
namespace	ultralight::js
	Type-checked JavaScript bridge between C++ and web pages.

Enumerations
enum class	PropertyAttributes : unsigned { None = kULJSPropertyAttributes_None , ReadOnly = kULJSPropertyAttributes_ReadOnly , DontEnum = kULJSPropertyAttributes_DontEnum , DontDelete = kULJSPropertyAttributes_DontDelete }
	Attribute flags for a property created by Value::SetProperty(). More...
enum class	Type : unsigned {   Invalid = kULJSType_Invalid , Undefined = kULJSType_Undefined , Null = kULJSType_Null , Boolean = kULJSType_Boolean ,   Number = kULJSType_Number , String = kULJSType_String , Symbol = kULJSType_Symbol , BigInt = kULJSType_BigInt ,   Object = kULJSType_Object }
	The type of a JavaScript value. More...

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