Modules and Imports

Question 1

Which keyword ensures that a JavaScript module’s internal variables/functions cannot be modified from outside the module?

Answer 1

None, as modules inherently provide this encapsulation

Question 2

In ES6 module syntax, how would you import only specific functions or variables from a module?

Answer 2

import { functionName } from ‘module-name’;

Question 3

If a module exports multiple items, and one as default, how would you import the default export and a named export simultaneously?

Answer 3

import defaultExport, { namedExport } from ‘module-name’;

Question 4

What is the purpose of “default” in ES6 module exports?

Answer 4

To specify the primary export of a module

Question 5

Which keyword is used to export a module in ES6 JavaScript?

Answer 5

export

Question 6

If a JavaScript module has a default export, how would you import it?

Answer 6

import defaultExport from ‘module-name’;

Question 7

Which of the following is a way to import everything from a module in ES6?

Answer 7

import * as aliasName from ‘module-name’;

Question 8

If you see the import … from … syntax in a JavaScript file, what type of module system is it most likely using

Answer 8

ES6 Modules