a deep copy of a valueSymbolRepresents a unique and immutable data type that is used as the key of an object propertySyntaxErrorRepresents an error when trying to interpret syntactically invalid codeTypeErrorRepresents an error when a value is not of the expected typeUint8ArrayRepresents a typed array of 8-bit unsigned integersUint8ClampedArrayRepresents a typed array of 8-bit unsigned integers clamped to 0-255Uint32ArrayRepresents a typed array of 32-bit unsigned integersURIErrorRepresents an error when a global URI handling function was used in a wrong wayURLRepresents an object providing static methods used for creating object URLsURLPatternRepresents a URL patternURLSearchParamsRepresents a collection of key/value pairsWeakMapRepresents a collection of key/value pairs in which the keys are weakly referencedWeakSetRepresents a collection of objects in which each object may occur only onceWebAssemblyProvides access to WebAssembly