CODEWITHSUNDEEP
arraysinitializationswift
m_power
m_power

Reputation: 3204

How to initialize all members of an array to the same value in Swift?

I have a large array in Swift. I want to initialize all members to the same value (i.e. it could be zero or some other value). What would be the best approach?

Upvotes: 107

Views: 79066

Answers (3)

Hula
Hula

Reputation: 81

For swift 3 and above, if you want to initialize with Array key word:

var threeDoubles = Array<Double>(repeating: 0.0, count: 3)

We can add the type of value we want to work with this array. For more information you can read the document provide by apple.

Upvotes: 0

moumoute6919
moumoute6919

Reputation: 2416

Actually, it's quite simple with Swift. As mentioned in the Apple's doc, you can initialize an array with the same repeated value like this:

With old Swift version:

var threeDoubles = [Double](count: 3, repeatedValue: 0.0)

Since Swift 3.0:

var threeDoubles = [Double](repeating: 0.0, count: 3)

which would give:

[0.0, 0.0, 0.0]

Upvotes: 206

Andi
Andi

Reputation: 9064

This would be an answer in Swift 3:

var threeDoubles = [Double]( repeating: 0.0, count: 3 )

Upvotes: 37

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