Finding index to value in [[String]]

Question

Looking for a way to check if an [[String]] array contains a value and then find the index of that value.

The [[String]] array is named: "categoriesArray" and contains three String arrays

Tried using .indexOf like below:

var location = categoriesArray.indexOf(array1)

But I get an error saying:

Cannot convert value of type '[String]' to expected argument type '([String]) throws -> Bool'

Anyone know how I can solve this?

Vladimir · Accepted Answer · 2017-12-14 22:04:19Z

1

indexOf or it newer version index(where:) takes closure as parameter, not an object you're looking for. Correct usage:

// index will return optional Int
var location = categoriesArray.index(where:{$0==roundLightArray})

answered Dec 14, 2017 at 22:04

Vladimir

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