質問編集履歴
1
質問編集追加
title
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File without changes
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body
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@@ -13,4 +13,19 @@
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13
13
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print(result as Any) // -> Optional(86.25960000000001)
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let resultStr = result?.stringValue
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15
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print(resultStr as Any) // -> Optional("86.25960000000001")
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16
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```
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17
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+
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18
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数値によってはdooubleValueで出力すると変になったりします。
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19
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+
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20
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```swift
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21
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let expression = NSExpression(format: "85.2596+85.2")
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let result = expression.expressionValue(with: nil, context: nil) as? NSNumber
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23
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24
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if let resultValue = result?.doubleValue {
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25
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print(resultValue) // -> 170.45960000000002
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26
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}
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27
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+
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28
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if let resultValue = result?.stringValue {
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29
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print(resultValue) // -> 170.4596
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30
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}
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16
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```
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