Method call

src/main/java/org/dynjs/runtime/builtins/ParseInt.java:31–114

(ExecutionContext context, Object self, Object... arguments)

    }

    @Override
    public Object call(ExecutionContext context, Object self, Object... arguments) {
        String inputString = Types.toString(context, arguments[0]);

        int len = inputString.length();
        int firstNonWhitespace = -1;

        for (int i = 0; i < len; ++i) {
            char c = inputString.charAt(i);
            if (Types.isWhitespace(c)) {
                // nothing
            } else {
                firstNonWhitespace = i;
                break;
            }
        }

        String s = null;
        int sign = 1;

        if (firstNonWhitespace < 0) {
            s = "";
        } else {
            s = inputString.substring(firstNonWhitespace);
            char c = s.charAt(0);
            if (c == '-') {
                sign = -1;
            }
            if (c == '-' || c == '+') {
                s = s.substring(1);
            }
        }
        

        long r = Types.toInt32(context, arguments[1]);

        boolean stripPrefix = true;

        if (r != 0) {
            if (r < 2 || r > 36) {
                return Double.NaN;
            }
            if (r != 16) {
                stripPrefix = false;
            }
        } else {
            r = 10;
        }

        if (stripPrefix) {
            if (s.startsWith("0X") || s.startsWith("0x")) {
                s = s.substring(2);
                r = 16;
            }
        }

        len = s.length();
        int firstInvalidDigit = -1;