ECMAScript and JavaScript presentation content for Driven Class 10

What is ECMA and what is the difference between ECMAScript and JavaScript?
In 2015, with the release of ES6, many changes started to happen in JavaScript. What were the changes below? Put examples of before and after 🙂
- Default Parameters
- Template Strings
- Destructuring
What is strict mode?
What is Hoisting?
What is the difference between var, let and const?
What is the difference between for, forEach and for..of ?