Week 14
Quiz 21

Quiz 21: Refresher: Reduce

Question 1

Shows 'true'?
JavaScript
const list = ['a', 'bb', 'ccc', 'dddd'];
const result = list.reduce(count => ++count);
result === list.length

Question 2

Shows 'true'?
JavaScript
const list = ['a', 'bb', 'ccc', 'dddd'];
const result = list.reduce((count, str) => ++count, 0);
document.write(result === list.length);

Question 3

Shows 'true'?
JavaScript
const list = ['a', 'bb', 'ccc', 'dddd'];
const result = list.reduce(count => count++, 0);
document.write(result === list.length);

Question 4

Shows 'true'?
JavaScript
const list = ['a', 'bb', 'ccc', 'dddd'];
const result = list.reduce((count) => ++count, 0);
document.write(result === list.length);