Number to fixed-point notation without trailing zeros
JavaScript, Math, String · May 10, 2022

Formats a number using fixed-point notation, if it has decimals.
- Use
Number.prototype.toFixed()
to convert the number to a fixed-point notation string. - Use
Number.parseFloat()
to convert the fixed-point notation string to a number, removing trailing zeros. - Use a template literal to convert the number to a string.
const toOptionalFixed = (num, digits) => `${Number.parseFloat(num.toFixed(digits))}`; toOptionalFixed(1, 2); // '1' toOptionalFixed(1.001, 2); // '1' toOptionalFixed(1.500, 2); // '1.5'