How do you declare a constant variable in ES6?
A). const
B). let
C). var
D). function
What keyword is used to declare a block-scoped variable in ES6?
A). var
B). let
C). const
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 does Promise.resolve(5).then(console.log) print?
A). 5
B). undefined
C). null
D). Error
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 [a, b] = [1, 2];?
A). a = 1, b = 2
B). a = [1], b = [2]
C). a = 2, b = 1
D). Error
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'
How do you export a function in ES6 modules?
A). export function myFunc() {}
B). module.exports = myFunc;
C). exports.myFunc = function() {}
D). export myFunc = function() {}
How do you create a generator function in ES6?
A). function* gen() {}
B). function gen*() {}
C). function*gen() {}
D). function * gen() {}
What does the for...of loop iterate over?
A). Object properties
B). Object values
C). Array indices
D). Iterable objects