LanguageVersion

ES6 and the parts of later editions this engine implements. The usual choice.

The newest the engine has, which today behaves the same as ES6.

ES5, before let, classes, generators and the rest.

Returns a representation of an immutable list of all enum entries, in the order they're declared.

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Returns an array containing the constants of this enum type, in the order they're declared.