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swiftstringif-statementdouble-quotes

Testing string for double quote characters in Swift

I am trying to find double quote characters in a swift String type with the following code:

for char in string {
    if char == "\"" {
        debugPrint("I have found a double quote")
    }
}

The if statement never catches the double quote in the string.

I am using Xcode 7.3.1

Any suggestions of comments?

Solution

  • Depending on what you want to do:

    let str = "Hello \"World\""

// If you simply want to know if the string has a double quote
if str.containsString("\"") {
    print("String contains a double quote")
}

// If you want to know index of the first double quote
if let range = str.rangeOfString("\"") {
    print("Found double quote at", range.startIndex)
}

// If you want to know the indexes of all double quotes
let indexes = str.characters.enumerate()
                .filter { $1 == "\"" }
                .map { $0.0 }
print(indexes)