Date: 2018apr7 Updated: 2024mar16 Language: javaScript Keywords: dollars, cents, financial, round Q. javaScript: limit the number of decimal digits when displaying a number A. Use Number.toFixed() like this

const n = 1.23456789; console.log(n.toFixed(2));

Will display

1.23

Note that toFixed() requires a number and it returns a string. Here's a function with some robustness:

function twoDecimal(num) { if (typeof(num) == 'string') num = parseFloat(num) return num.toFixed(2); }

If you want zero decimal digits:

function zeroDecimal(num) { if (typeof(num) == 'string') num = parseFloat(num) return num.toFixed(); }

More info https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/toFixed