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【Swift】指定した文字列の位置(location)を検索する

Posted at

指定した文字列の位置(location)を検索する!!

ソースコード

usage
let text = "今日のお昼はカルボナーラを食べた!"
let searchString = "カルボナーラ"
let location = text.searchLocation(searchString: searchString)
print(location)      // 6
extension
extension String {
    func searchLocation(searchString: String) -> Int {
        let location = NSString(string: self).range(of: searchString).location
        if location >= self.count {
            return -1
        }
        return location
    }
}

位置が分かれば↓こういった文字列操作もできます
【Swift】指定した文字列以前(以降)を削除する

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