String

Converts self to an unsigned byte array.

Converts self to an NSMutableAttributedString.

Converts self to an NSString.

Converts string to camel-case.

Examples:

"os version".camelCasedString                 // "osVersion"
"HelloWorld".camelCasedString                 // "helloWorld"
"someword With Characters".camelCasedString   // "somewordWithCharacters"

The base64 encoded version of self. Credit: http://stackoverflow.com/a/29365954

The decoded value of a base64 encoded string Credit: http://stackoverflow.com/a/29365954

Returns true if every character within the string is a numeric character. Empty strings are considered non-numeric.

Replaces all occurences of the pattern on self in-place.

Examples:

"hello".regexInPlace("[aeiou]", "*")      // "h*ll*"
"hello".regexInPlace("([aeiou])", "<$1>") // "h<e>ll<o>"

Returns a string containing replacements for all pattern matches.

Examples:

"hello".regex("[aeiou]", "*")      // "h*ll*"
"hello".regex("([aeiou])", "<$1>") // "h<e>ll<o>"

Replaces pattern-matched strings, operated upon by a closure, on self in-place.

Example:

"hello".regexInPlace(".") {
   let s = $0.unicodeScalars
   let v = s[s.startIndex].value
   return "\(v) "
}   // "104 101 108 108 111 "

Returns a string with pattern-matched strings, operated upon by a closure.

Example:

"hello".regex(".") {
   let s = $0.unicodeScalars
   let v = s[s.startIndex].value
   return "\(v) "
}   // "104 101 108 108 111 "

Substring at index

Substring for range

Substring for closed range

Substring for countable partial range

Substring for partial range through upper bound

Substring for partial range up to upper bound

Truncates the string to length characters, optionally appending a trailing string. If the string is shorter than the required length, then this function is a non-op.

Examples:

"hello there".truncated(to: 5)                   // "hello"
"hello there".truncated(to: 5, trailing: "...")  // "hello..."

Undocumented

A bridge for invoking String.localizedStandardContainsString(), which is available in iOS 9 and later. If you need to support iOS versions prior to iOS 9, use compatibleStandardContainsString() as a means to bridge functionality. If you can support iOS 9 or greater only, use localizedStandardContainsString() directly.

From Apple’s Swift 2.1 documentation:

localizedStandardContainsString() is the most appropriate method for doing user-level string searches, similar to how searches are done generally in the system. The search is locale-aware, case and diacritic insensitive. The exact list of search options applied may change over time.

Convert an NSRange to a Range. There is still a mismatch between the regular expression libraries and NSString/String. This makes it easier to convert between the two. Using this allows complex strings (including emoji, regonial indicattors, etc.) to be manipulated without having to resort to NSString instances.

Note that it may not always be possible to convert from an NSRange as they are not exactly the same.

Taken from: http://stackoverflow.com/questions/25138339/nsrange-to-rangestring-index

Convert a Range to an NSRange. There is still a mismatch between the regular expression libraries and NSString/String. This makes it easier to convert between the two. Using this allows complex strings (including emoji, regonial indicators, etc.) to be manipulated without having to resort to NSString instances.

Taken from: http://stackoverflow.com/questions/25138339/nsrange-to-rangestring-index