Which function is used to clone an object in Underscore.js?
A). _.extend
B). _.clone
C). _.map
D). _.filter
Which function can be used to delay the execution of a function in Underscore.js?
A). _.defer
B). _.delay
C). _.debounce
D). _.throttle
What is the result of _.reduce([1, 2, 3], function(sum, num) { return sum + num; }, 0)?
A). 6
B). 5
C). 3
D). 2
Which function retrieves the minimum value in a list using Underscore.js?
A). _.min
B). _.max
C). _.reduce
D). _.filter
Which function is used to find unique elements in an array in Underscore.js?
A). _.first
B). _.last
C). _.uniq
D). _.filter
What is the result of _.map([1, 2, 3], function(num) { return num * 3; })?
A). [1, 2, 3]
B). [3, 6, 9]
C). [2, 4, 6]
D). [3, 6, 9, 12]
How do you flatten a nested array using Underscore.js?
A). _.map
B). _.flatten
C). _.filter
D). _.reduce
What does the _.each function do in Underscore.js?
A). Iterates over a list of elements
B). Creates a new array with transformed values
C). Filters values in a list
D). Reduces the list to a single value
What does _.keys({one: 1, two: 2, three: 3}) return?
A). [1, 2, 3]
B). ['one', 'two', 'three']
C). ['1', '2', '3']
D). [1, 2, 'three']
What does _.omit({name: 'Alice', age: 25, location: 'NY'}, 'age') return?
A). {name: 'Alice', location: 'NY'}
B). {age: 25}
C). {name: 'Alice', age: 25}
D). {location: 'NY'}