Function P

xiaohongshu/test.js:1211–1218

(e, t, n)

                return r
            }
            function P(e, t, n) {
                var r = e.length;
                (!t || t < 0) && (t = 0),
                (!n || n < 0 || n > r) && (n = r);
                for (var i = "", o = t; o < n; ++o)
                    i += U(e[o]);
                return i
            }
            function M(e, t, n) {
                for (var r = e.slice(t, n), i = "", o = 0; o < r.length; o += 2)
                    i += String.fromCharCode(r[o] + 256 * r[o + 1]);