Q
How do you debounce a function in Underscore.js to limit the rate at which it can fire?

Answer & Solution

Answer: Option B
Solution:
The _.debounce function creates a debounced version of the function that delays invoking until after wait milliseconds have elapsed.
Related Questions on Average

How do you check if a value is an array in Underscore.js?

A). _.isObject

B). _.isArray

C). _.isArguments

D). _.isString

How do you generate a random number within a range in Underscore.js?

A). _.random

B). _.range

C). _.shuffle

D). _.sample

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

Which function can be used to delay the execution of a function in Underscore.js?

A). _.defer

B). _.delay

C). _.debounce

D). _.throttle

Which function retrieves the minimum value in a list using Underscore.js?

A). _.min

B). _.max

C). _.reduce

D). _.filter

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']

Which function is used to find unique elements in an array in Underscore.js?

A). _.first

B). _.last

C). _.uniq

D). _.filter

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 _.identity(value) return?

A). null

B). undefined

C). The same value

D). A new value