Swift String joined()

var str = ["I", "love","Swift"]

// join strings with space between them
var joinedStr = str.joined(separator:" ")

print(joinedStr)

// Output: I love Swift

joined() Syntax

The syntax of joined() is:

string.joined(separator: delimiter)

Here, string is an object of the String class.

joined() Parameter

The joined() method takes one parameter:

• delimiter - the delimiter to be joined with the elements

Note: If we call joined() without any parameter, the strings are joined without any separator.

joined() Return Value

• returns the joined string

Example: Swift joined()

var str = ["Swift", "Java", "JavaScript"]

// join strings with no separator
var join1 = str.joined()

// join strings with space between them
var join2 = str.joined(separator:" ")

// join strings with comma between them
var join3 = str.joined(separator:", ")

print(join1)
print(join2)
print(join3)

Output

SwiftJavaJavaScript
Swift Java JavaScript
Swift, Java, JavaScript