回答編集履歴
1
extensionを書いてみた
test
CHANGED
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@@ -34,12 +34,48 @@
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34
34
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35
35
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```
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36
36
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37
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#別解
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38
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39
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```Swift
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40
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41
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extension String {
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42
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43
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func suffixZeroSuppress() -> String? {
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44
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45
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guard let d = Double(self) else {
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46
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47
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return nil
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48
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49
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}
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50
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51
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52
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53
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var t = String(d)
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54
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55
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56
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57
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if let range = t.range(of: ".0") {
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58
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t.replaceSubrange(range, with: "")
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61
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}
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62
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63
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return t
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64
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65
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}
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66
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}
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68
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69
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70
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71
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print("12.34000".suffixZeroSuppress()!) //=> 12.34
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72
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41
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-
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73
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print("-12.00".suffixZeroSuppress()!) // => -12
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74
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75
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print("0.00".suffixZeroSuppress()!) // => 0
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76
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77
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print("000.0000".suffixZeroSuppress()!) // => 0
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78
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45
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-
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79
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print("0000".suffixZeroSuppress()!) // => 0
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80
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81
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```
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