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<!DOCTYPE html> <html> <body> <h1>JavaScript Regular Expressions</h1> <p>Do a global search for the numbers 1 to 4 in a string:</p> <p id="demo"></p> <script> let text = "123456789"; let result = text.match(/[1-4]/g); document.getElementById("demo").innerHTML = result; </script> </body> </html>
