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 does Promise.resolve(5).then(console.log) print?
A). 5
B). undefined
C). null
D). Error
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() {}
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
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 is the output of const x = 10; x = 20;?
A). 20
B). 10
C). Error
D). undefined
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 keyword is used to declare a block-scoped variable in ES6?
A). var
B). let
C). const
D). function
What is the output of typeof Symbol('description')?
A). 'string'
B). 'object'
C). 'symbol'
D). 'undefined'
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']