truncate float to decimal point

truncateToDecimal.js

export default function truncateToDecimal(number, precision = 0) {
    const floatStr = number.toString();
    const index = floatStr.indexOf('.');
    // Return number if not a float
    if (index === -1) {
        return number;
    }
    // Truncate the string starting at the decimal plus any added precision
    // Increment by 1 to include the specified precision
    const truncated = floatStr.substring(0, index + precision + 1);

    // Return the truncated float
    return parseFloat(truncated);
}