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What is the any() function in Julia?

Gutha Vamsi Krishna

Grokking Modern System Design Interview for Engineers & Managers

Ace your System Design Interview and take your career to the next level. Learn to handle the design of applications like Netflix, Quora, Facebook, Uber, and many more in a 45-min interview. Learn the RESHADED framework for architecting web-scale applications by determining requirements, constraints, and assumptions before diving into a step-by-step design process.

In this shot, we will learn about Julia’s built-in any() function.

Overview

The any() function is a built-in function provided by Julia.

It tests whether any element in the Boolean collection has a true value.

We use the following syntax for this function.

Syntax

any(boolean_collection)

Parameters and returns

The any() function takes a boolean collection as a parameter.

  1. If any of the values is true in the boolean collection, it returns true.
  2. If all the non-missing values are false, it returns missing.
  3. If all values are false, it returns false.

Let’s use an example to understand it better:

Example

In the following code, we have three examples for three cases as specified in the returns above:

#Refer to point 1 in returns
println(any([false, false, true, false]))
#Refer to point 2 in returns
println(any([false, missing, false]))
#Refer to point 3 in returns
println(any([false, false, false, false]))

Quiz

Let’s take a small quiz on what we have learned about the any() function so far.

Let’s check our understanding of the any() function in Julia.

Q

What do you think the below code snippet prints?

println(any([false, missing, true]))
A)

true

B)

false

C)

missing

RELATED TAGS

julia
communitycreator
boolean

Grokking Modern System Design Interview for Engineers & Managers

Ace your System Design Interview and take your career to the next level. Learn to handle the design of applications like Netflix, Quora, Facebook, Uber, and many more in a 45-min interview. Learn the RESHADED framework for architecting web-scale applications by determining requirements, constraints, and assumptions before diving into a step-by-step design process.

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