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<!DOCTYPE html> <html> <body> <h2>JavaScript Regular Expressions</h2> <p>Do a global search for a "1", followed by zero or one "0" characters:</p> <p id="demo"></p> <script> let text = "1, 100 or 1000?"; let result = text.match(/10?/g); document.getElementById("demo").innerHTML = result; </script> </body> </html>
