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JavaScript Number Methods

The toFixed() Method

The toFixed() method rounds a number to a given number of digits.

For working with money, toFixed(2) is perfect.

let x = 9.656;
document.getElementById("demo").innerHTML =
  x.toFixed(0) + "<br>" +
  x.toFixed(2) + "<br>" +
  x.toFixed(4) + "<br>" +
  x.toFixed(6);