MySQL 9.0 Release Notes
JavaScript language support in MySQL conforms to the
ECMAScript
2023 Specification, and uses strict mode by default.
Strict mode cannot be disabled. This implementation includes all
of the standard ECMAScript library objects such as
Object, Function,
Math, Date,
String, and so forth.
console.log() and
console.error() are also supported (see
Section 27.3.9, “JavaScript Stored Program Examples”).