Strings

A String is a sequence of characters (such as letters, numbers, and symbols) that is used to represent text. It is a data type designed specifically for handling and manipulating textual data. Single-line strings are enclosed in single (‘) or double (“) quotes, whereas triple quotes (‘’’) are used to represent multi-line strings.

Syntax

Here is the syntax for single, double, and triple quoted strings in Dart:

  String singleQuoteString = 'This is a Dart string with a single quote.';
  String doubleQuoteString = "This is a Dart string with double quotes.";
  String multiLineString = '''
    This is a multi-line
    string in Dart using a single quote.
    It allows to write
    text across multiple lines.
  ''';

Example

The following example determines and prints a message based on the value of the String variable name and the int variable age:

void main() {
  String name = "Alice";
  int age = 30;
  String interpolatedString = "Hello, my name is $name and I am $age years old.";
  print(interpolatedString);
}

The above code gives the following output:

Hello, my name is Alice and I am 30 years old.