Beginner
JavaScript
Q17 / 100
What does the Array.prototype.reduce() method do?
Correct! Well done.
Incorrect.
The correct answer is B) Reduces an array to a single value by applying a callback cumulatively
B
Correct Answer
Reduces an array to a single value by applying a callback cumulatively
Explanation
[1,2,3].reduce((acc, x) => acc + x, 0) returns 6. The second argument is the initial accumulator value.
Progress
17/100