Method compareJsLike

java/lib/src/main/java/io/github/ccxt/base/Generic.java:86–98

JS-like comparison for sortBy. Mirrors TS `<`/`>` semantics: - both numeric (Number, or Strings that parse as numbers): numeric compare - both non-numeric strings: lexicographic - mixed: fall back to lex compare on toString() (matches JS coercion rules closely enough for ccxt's sort use-cases)

(Object a, Object b, Object defaultValue)

     * currency-merge path started feeding mixed-type values into the same sort.
     */
    private static int compareJsLike(Object a, Object b, Object defaultValue) {
        if (a == null) a = defaultValue;
        if (b == null) b = defaultValue;
        boolean aEmpty = (a == null) || "".equals(a);
        boolean bEmpty = (b == null) || "".equals(b);
        if (aEmpty && bEmpty) return 0;
        if (aEmpty) return -1;
        if (bEmpty) return 1;
        Double da = toDoubleOrNull(a);
        Double db = toDoubleOrNull(b);
        if (da != null && db != null) return Double.compare(da, db);
        return String.valueOf(a).compareTo(String.valueOf(b));
    }

    private static Double toDoubleOrNull(Object o) {
        if (o instanceof Number n) return n.doubleValue();