Answer & Solution
Answer: Option A
Solution:
The _.each function iterates over a list of elements, yielding each in turn to an iteratee function.
1.
What does the _.each function do in Underscore.js?
2.
What is the result of _.map([1, 2, 3], function(num) { return num * 3; })?
3.
Which function is used to find unique elements in an array in Underscore.js?
4.
How do you flatten a nested array using Underscore.js?
5.
What does the _.filter function do in Underscore.js?
6.
What does _.keys({one: 1, two: 2, three: 3}) return?
7.
What is the output of _.last([1, 2, 3, 4, 5], 2)?
8.
How do you extend an object with properties from other objects in Underscore.js?
9.
Which function is used to clone an object in Underscore.js?
10.
What does _.identity(value) return?