how to match regex in dart code example

Example 1: dart regex

RegExp exp = new RegExp(r"(\w+)");
String str = "Parse my string";
Iterable<RegExpMatch> matches = exp.allMatches(str);

Example 2: dart regex,regex dart

// Here's a regular expression for one or more digits.
var numbers = RegExp(r'\d+');

var allCharacters = 'llamas live fifteen to twenty years';
var someDigits = 'llamas live 15 to 20 years';

// contains() can use a regular expression.

// Replace every match with another string.
var exedOut = someDigits.replaceAll(numbers, 'XX');
assert(exedOut == 'llamas live XX to XX years');


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