Dart RegExp isUnicode
Syntax & Examples

RegExp.isUnicode property

The `isUnicode` property in Dart's `RegExp` class determines whether the regular expression is in Unicode mode.

Syntax of RegExp.isUnicode

The syntax of RegExp.isUnicode property is:

 bool isUnicode

This isUnicode property of RegExp whether this regular expression is in Unicode mode.

Return Type

RegExp.isUnicode returns value of type bool.


✐ Examples

1 Using Unicode mode

In this example,

  1. We create a `RegExp` object named `pattern` with the pattern 'hello' and unicode set to true.
  2. We print the value of `isUnicode` property, which should be true indicating that the regular expression is in Unicode mode.

Dart Program

void main() {
  RegExp pattern = RegExp('hello', unicode: true);
  print(pattern.isUnicode);
}

Output

true

2 Not using Unicode mode

In this example,

  1. We create a `RegExp` object named `pattern` with the pattern 'hello' and unicode set to false.
  2. We print the value of `isUnicode` property, which should be false indicating that the regular expression is not in Unicode mode.

Dart Program

void main() {
  RegExp pattern = RegExp('hello', unicode: false);
  print(pattern.isUnicode);
}

Output

false

Summary

In this Dart tutorial, we learned about isUnicode property of RegExp: the syntax and few working examples with output and detailed explanation for each example.