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<!DOCTYPE html> <html> <body> <p>Click the button to perfom a global search for the letters "ain" in a string, and display the matches.</p> <button onclick="myFunction()">Try it</button> <p id="demo"></p> <script> function myFunction() { var str = "The rain in SPAIN stays mainly in the plain"; var res = str.match(/ain/g); document.getElementById("demo").innerHTML = res; } </script> </body> </html>