Function countDecimals

countDecimals(n): number

Counts the number of decimal places in a number.

Parameters

n: number
The number to analyze.

Returns number

The number of digits after the decimal point, or 0 if the number is an integer, has no decimal part, or is not a finite number (e.g., NaN, Infinity).

Function

countDecimals

Example

console.log(countDecimals(123.45));    // Outputs: 2
console.log(countDecimals(10));        // Outputs: 0
console.log(countDecimals(5.0));       // Outputs: 0
console.log(countDecimals(3.14159));   // Outputs: 5
console.log(countDecimals(NaN));       // Outputs: 0
console.log(countDecimals(Infinity));  // Outputs: 0