What is the result of [...['a', 'b', 'c']]?
A). ['a', 'b', 'c']
B). [['a', 'b', 'c']]
C). ['abc']
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 typeof Symbol('description')?
A). 'string'
B). 'object'
C). 'symbol'
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'
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
How do you create a generator function in ES6?
A). function* gen() {}
B). function gen*() {}
C). function*gen() {}
D). function * gen() {}
What keyword is used to declare a block-scoped variable in ES6?
A). var
B). let
C). const
D). function
What is the output of const x = 10; x = 20;?
A). 20
B). 10
C). Error
D). undefined
How do you interpolate variables in a string using template literals?
A). Hello, + name + '!'
B). Hello, ${name}!
C). 'Hello, ' + name + '!'
D). Both A and B