The handler.construct() method is a trap for the [[Construct]] object internal method, which is used by operations such as the new operator. In order for the new operation to be valid on the resulting Proxy object, the target used to initialize the proxy must itself be a valid constructor.

The Reflect.setPrototypeOf() static method is like Object.setPrototypeOf() but returns a Boolean. It sets the prototype (i.e., the internal [[Prototype]] property) of a specified object.

The pop() method of Array instances removes the last element from an array and returns that element. This method changes the length of the array.

The handler.get() method is a trap for the [[Get]] object internal method, which is used by operations such as property accessors.

The handler.getPrototypeOf() method is a trap for the [[GetPrototypeOf]] object internal method, which is used by operations such as Object.getPrototypeOf().

The maxByteLength accessor property of ArrayBuffer instances returns the maximum length (in bytes) that this array buffer can be resized to.

The ArrayBuffer() constructor creates ArrayBuffer objects.

The [@@split]() method of RegExp instances specifies how String.prototype.split should behave when the regular expression is passed in as the separator.

The [@@search]() method of RegExp instances specifies how String.prototype.search should behave.

The Symbol.for() static method searches for existing symbols in a runtime-wide symbol registry with the given key and returns it if found. Otherwise a new symbol gets created in the global symbol registry with this key.