+ 3
ECMAScript is the language, whereas JavaScript, JScript, and even ActionScript 3 are called "dialects".Â
https://en.m.wikipedia.org/wiki/ECMAScript
sheds some light on this.
//
Is google on strike?
https://www.freecodecamp.org/news/whats-the-difference-between-javascript-and-ecmascript-cba48c73a2b5/amp/
https://stackoverflow.com/questions/912479/what-is-the-difference-between-javascript-and-ecmascript
https://www.tutorialspoint.com/What-is-the-difference-between-JavaScript-and-ECMAScript