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<body>
<p>Click the button to perfom a global (/g) search for the letters "ain" (/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>
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