Method toDoubleOrNull

java/lib/src/main/java/io/github/ccxt/base/Generic.java:100–107

(Object o)

    }

    private static Double toDoubleOrNull(Object o) {
        if (o instanceof Number n) return n.doubleValue();
        try {
            return Double.parseDouble(String.valueOf(o));
        } catch (NumberFormatException ignored) {
            return null;
        }
    }

    public static List<Object> sortBy2(Object array, Object key1, Object key2, Object desc2) {
        boolean desc = (desc2 instanceof Boolean b) ? b : false;