Swift if複数条件をswitchへ、最初からそう書けよって。。。

2024年2月11日

リファクタリング前

if self.notebook.orientation == .portrait {
    if self.notebook.unit == .day {
        self.image(assetname: "Default Template Portrait Day")
    }
    else {
        self.image(assetname: "Default Template Portrait")
    }
}
else {
    if self.notebook.unit == .day {
        self.image(assetname: "Default Template Landscape Day")
    }
    else {
        self.image(assetname: "Default Template Landscape")
    }
}

リファクタリング後

switch (self.notebook.orientation, self.notebook.unit) {
case (.portrait, .day):
    self.image(assetname: "Default Template Portrait Day")
case (.portrait, .week):
    self.image(assetname: "Default Template Portrait")
case (.landscape, .day):
    self.image(assetname: "Default Template Landscape Day")
case (.landscape, .week):
    self.image(assetname: "Default Template Landscape")
}