Use the parseInt() method in JavaScript to parse a string and return an integer. You can also set the number system as the second parameter.
You can try running the following code to learn how to use the parseFloat() method in JavaScript.
<!DOCTYPE html>
<html>
<body>
<script>
var val1 = parseInt("20.50");
var val2 = parseInt("30 minutes");
var val3 = parseInt("20",16);
document.write(val1);
document.write("<br>"+val2);
document.write("<br>"+val3);
</script>
</body>
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