Use the parseInt() method in JavaScript to return an integer after parsing a string. You can also set the numeral system as a second parameter.
Example
You can try to run the following code to learn how to work with 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> </html>