M3-ES6

Question 1

What is “syntactic sugar”?

Answer 1

Syntactic sugar is a concise syntax that is easier to read or express.

Question 2

What is the typeof an ES6 class?

Answer 2

function

Question 3

Describe ES6 class syntax.

Answer 3

class Person {
    constructor(name) {
        this.name = name;
    }
    getName() {
        return this.name;
    }
}

Question 4

What is “refactoring”?

Answer 4

refactoring is a process of restructuring code, changing the factoring without changing the external behavior.

Question 5

How are ES Modules different from CommonJS modules?

Answer 5

Their syntax is even more compact than CommonJS’s.
Their structure can be statically analyzed (for static checking, optimization, etc.).
Their support for cyclic dependencies is better than CommonJS’s.

Question 6

What kind of modules can Webpack support?

Answer 6

ECMAScript modules
CommonJS module
Asynchronous Module Definition (AMD)
Assets
WebAssembly modules