How to Convert a Set of Strings to a Set of Floats in Swift - Step by Step Examples

How to Convert a Set of Strings to a Set of Floats in Swift ?

Answer

To convert a set of strings to a set of floats in Swift, you can use the compactMap method to transform each string into a float and filter out any nil values, and then create a new set from the resulting array.

✐ Examples

1 Convert Set of Strings to Set of Floats Example 1

In this example,

First, we create a set named stringSet1 using the Set constructor, which contains the string values "1.1", "2.2", and "3.3".
Next, we use the compactMap method on stringSet1 to transform each string into a float using the closure Float($0). This closure returns an optional float, so compactMap filters out any nil values.
We convert the resulting array to a set using the Set constructor, resulting in a set of floats named floatSet1.
Finally, we print the set of floats using print.

Swift Program

let stringSet1: Set<String> = ["1.1", "2.2", "3.3"]
let floatSet1 = Set(stringSet1.compactMap { Float($0) })
print(floatSet1)

Output

Set(3.3, 2.2, 1.1)

2 Convert Set of Strings to Set of Floats Example 2

In this example,

We create a set named stringSet2 using the Set constructor, which contains the string values "1.1", "hello", "2.2", "3.3", and "world".
We use the compactMap method on stringSet2 to transform each string into a float using the closure Float($0). This closure returns an optional float, so compactMap filters out any nil values.
We convert the resulting array to a set using the Set constructor, resulting in a set of floats named floatSet2.
Finally, we print the set of floats using print.

Swift Program

let stringSet2: Set<String> = ["1.1", "hello", "2.2", "3.3", "world"]
let floatSet2 = Set(stringSet2.compactMap { Float($0) })
print(floatSet2)

Output

Set(3.3, 2.2, 1.1)

Summary

In this tutorial, we learned How to Convert a Set of Strings to a Set of Floats in Swift language with well detailed examples.

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