The __lookupSetter__() method of Object instances returns the function bound as a setter to the specified property.

The Proxy() constructor creates Proxy objects.

The Reflect.get() static method is like the property accessor syntax, but as a function.

The handler.ownKeys() method is a trap for the [[OwnPropertyKeys]] object internal method, which is used by operations such as Object.keys(), Reflect.ownKeys(), etc.

The Reflect.getOwnPropertyDescriptor() static method is like Object.getOwnPropertyDescriptor(). It returns a property descriptor of the given property if it exists on the object, undefined otherwise.

The getUint8() method of DataView instances reads 1 byte at the specified byte offset of this DataView and interprets it as an 8-bit unsigned integer.

The getUint16() method of DataView instances reads 2 bytes starting at the specified byte offset of this DataView and interprets them as a 16-bit unsigned integer. There is no alignment constraint; multi-byte values may be fetched from any offset within bounds.

The getInt8() method of DataView instances reads 1 byte at the specified byte offset of this DataView and interprets it as an 8-bit signed integer.

The TypedArray[@@species] static accessor property returns the constructor used to construct return values from typed array methods.

The Atomics.exchange() static method exchanges a given value at a given position in the array and returns the old value at that position. This atomic operation guarantees that no other write happens between the read of the old value and the write of the new value.