How do you define a default parameter in a function?
A). function(a, b = 2) {}
B). function(a, b: 2) {}
C). function(a, b = [2]) {}
D). function(a, b := 2) {}
How can you create a new promise in ES6?
A). new Promise(function)
B). Promise(function)
C). promise(function)
D). New Promise(function)
How do you create a generator function in ES6?
A). function* gen() {}
B). function gen*() {}
C). function*gen() {}
D). function * gen() {}
What is the output of [...'hello']?
A). ['hello']
B). ['h', 'e', 'l', 'l', 'o']
C). [104, 101, 108, 108, 111]
D). ['h', 'e', 'll', 'o']
What is the result of [...['a', 'b', 'c']]?
A). ['a', 'b', 'c']
B). [['a', 'b', 'c']]
C). ['abc']
D). Error
What does the for...of loop iterate over?
A). Object properties
B). Object values
C). Array indices
D). Iterable objects
What is the syntax for an arrow function in ES6?
A). function(a, b) { return a + b; }
B). (a, b) => { return a + b; }
C). (a, b) => a + b
D). Both B and C
What is the correct syntax to create a class in ES6?
A). class MyClass {}
B). class = MyClass {}
C). new MyClass = class {}
D). create class MyClass {}
What keyword is used to declare a block-scoped variable in ES6?
A). var
B). let
C). const
D). function
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() {}