What is the output of const [a, b] = [1, 2];?
A). a = 1, b = 2
B). a = [1], b = [2]
C). a = 2, b = 1
D). Error
How do you import a default export in ES6?
A). import { myFunc } from 'module';
B). import myFunc from 'module';
C). import * as myFunc from 'module';
D). import { default as myFunc } from 'module';
What does Promise.resolve(5).then(console.log) print?
A). 5
B). undefined
C). null
D). Error
How do you declare a constant variable in ES6?
A). const
B). let
C). var
D). function
What does the method Array.from() do?
A). Converts an array to a string
B). Converts an iterable or array-like object to an array
C). Clones an array
D). Filters an array
What keyword is used to declare a block-scoped variable in ES6?
A). var
B). let
C). const
D). function
What does the for...of loop iterate over?
A). Object properties
B). Object values
C). Array indices
D). Iterable objects
How can you create a new promise in ES6?
A). new Promise(function)
B). Promise(function)
C). promise(function)
D). New Promise(function)
What is the output of const x = 10; x = 20;?
A). 20
B). 10
C). Error
D). undefined
How do you check if a value is an array in ES6?
A). Array.isArray(value)
B). value.isArray()
C). value instanceof Array
D). typeof value === 'array'