Strings

Strings are a sequence of characters. You can declare a string using the string keyword:

var foo : string = "Hello World"

You can use the + operator to concatenate strings:

var foo : string = "Hello" + " World"

And you can use the [] operator to access a character in a string:

var foo : string = "Hello"
print(foo[1]) // 'e'

Note: type of accessed character is char Note: the first character in a string is at index 0.

With len function you can get the length of a string:

var foo : string = "Hello"
print(len(foo)) // 5

Note: len function is a built-in function.

Escape sequences

You can use escape sequences to print special characters:

var foo : string = "Hello\tWorld"
print(foo) // Hello    World

The following escape sequences are supported:

• \n : newline
• \t : tab
• \r : carriage return
• \\ : backslash
• \' : single quote
• \" : double quote
• \? : question mark
• \a : bell
• \b : backspace
• \f : form feed
• \v : vertical tab
• \0 : null character
• \x____ : hexadecimal character
• \u____ : unicode character
• \U____ : unicode character
• \_____ : arbitrary octal value

Note: _____ means you should specify the id of the character you want to print.

Reverse a string

You can reverse a string by using the string_reverse function in the strings package:

use strings

function main() {
    var foo : string = "Hello World"
    print(string_reverse(foo)) // dlroW olleH
}