Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Swift Program to demonstrate the escape sequence characters
In Swift, escape sequence characters are those characters who do not represent themselves when they are used inside a string. Instead, they tell the compiler to perform the specified task. They are non-printable characters. Swift supports the following escape sequence characters in the string −
Escape Sequence Characters |
Description |
|---|---|
\n |
It is a newline character. It tells the compiler to move to the new line. |
\t |
It is known as the horizontal tab. It tells the compiler to leave the tab. |
\r |
It is known as carriage return. It tells the compiler to move the cursor to the starting of the line. |
\” |
It is known as the double quotation mark. It tells the compiler to warp the string with double quotes. |
\’ |
It is known as a single quotation mark. It tells the compiler to warp the string with single quote. |
\0 |
It is a null character. It tells the compiler to terminate the string at a certain context. |
\ |
It is a backslash. It tells the compiler to add backslash to the string. |
\u{X} |
It is an arbitrary unicode scalar value, where X is a 1-8 digit hexadecimal number. It allows you to add characters from other unicode character sets. |
These escape sequence characters are used inside the string as shown in the below syntax −
Let str = "Rainbow is "very \beautiful"
Example 1
In the following Swift program, we will demonstrate the escape sequence characters.
import Foundation import Glibc // Using newline character let myStr1 = "Birds are playing \nin the rain" print("String 1:", myStr1) // Using horizontal tab character let myStr2 = "Ram is good\tIOS developer" print("String 2:", myStr2) // Using carriage return character let myStr3 = "Sita loves \rpizza" print("String 3:", myStr3) // Using double quotation mark character let myStr4 = "Rohan like \"Swift programming\"" print("String 4:", myStr4)
Output
String 1: Birds are playing in the rain String 2: Ram is good IOS developer pizzag 3: Sita loves String 4: Rohan like "Swift programming"
Example 2
In the following Swift program, we will demonstrate the escape sequence characters.
import Foundation import Glibc // Using single quotation mark character let myStr1 = "Kids are going to \'school\'" print("String 1:", myStr1) // Using null character let myStr2 = "Develop \0swift program" print("String 2:", myStr2) // Using backslash let myStr3 = "Rohan play \\ football" print("String 3:", myStr3) // Using arbitrary unicode scalar value let myStr4 = "\u{24}" print("String 4:", myStr4)
Output
String 1: Kids are going to 'school' String 2: Develop swift program String 3: Rohan play \ football String 4: $
Conclusion
So this is how we can use escape sequence characters. They allow you to represent some specific characters that are very hard to directly type in a string. Or we can say that they are special characters with a special task. Suppose you want to print single quotes but in a string, you can not directly print single quotes because the compiler thinks that the given single quotes are part of the syntax, so using \’ character you can achieve your goal.
142 Views
