The Uint8Array typed array represents an array of 8-bit unsigned integers. The contents are initialized to 0. Once established, you can reference elements in the array using the object's methods, or using standard array index syntax (that is, using bracket notation).

The Boolean object represents a truth value: true or false.

The BigUint64Array typed array represents an array of 64-bit unsigned integers in the platform byte order. If control over byte order is needed, use DataView instead. The contents are initialized to 0n. Once established, you can reference elements in the array using the object's methods, or using standard array index syntax (that is, using bracket notation).

The Promise.any() static method takes an iterable of promises as input and returns a single Promise. This returned promise fulfills when any of the input's promises fulfills, with this first fulfillment value. It rejects when all of the input's promises reject (including when an empty iterable is passed), with an AggregateError containing an array of rejection reasons.

The Object.getOwnPropertySymbols() static method returns an array of all symbol properties found directly upon a given object.

The lineNumber data property of an Error instance contains the line number in the file that raised this error.

The Reflect.ownKeys() static method returns an array of the target object's own property keys.

The Object.getOwnPropertyDescriptors() static method returns all own property descriptors of a given object.

The Error() constructor creates Error objects.

The columnNumber data property of an Error instance contains the column number in the line of the file that raised this error.