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How to get a random element from an array in Swift
Theodore Kelechukwu OnyejiakuOverview
In Swift, we can get a random element from an array by using randomELement(). If the array is empty, nil is returned.
Syntax
arr.randomElement()
Parameters
This method does not take any parameters.
Return value
This method returns an element from the array arr, picked at random.
Example
// create arrays let numbers = [1, 3, 10, 4] let techCoys = ["Google", "Amazon", "Netflix"] // get random elements let randomNum = numbers.randomElement()! let randomTechName = techCoys.randomElement()! // print random elements print(randomNum) print(randomTechName)
Get random elements from arrays in Swift
Explanation
In the above code snippet:
- Line 2 and 3: We create arrays
numbersandtechCoys.
- Line 5 and 6: We call the
randomElement()method on the arrays we created, and store the elements inside variablesrandomNumandrandomTechName. - Line 8 and 9: We print the results.
RELATED TAGS
array
swift
random
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Theodore Kelechukwu OnyejiakuRELATED COURSES
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