suvene

javascript: (function() {
var es = document.getElementsByTagName('div');
function invokeMouseEvent(elem, evname) {
  var e = document.createEvent('MouseEvents');
  e.initMouseEvent(evname, true, true, e.view||window, 0, 0, 0, 0, 0,
    false, false, false, false, 0, null);
  elem.dispatchEvent(e);
}
for (var i = 0, len = es.length; i < len; i++) {
  var e = es[i];

suvene

update (
  select
      a.id a_id
    , b.id b_id
    , a.val a_val
    , b.val b_val
  from a inner join b
    on a.id = b.id
) set
  a_val = b_id

suvene

create table a(
  id number,
  val varchar2(20)
);
create table b(
  id number,
  val varchar2(20)
);

update a set

suvene

(function(cdata){
    var s = document.createElement("script");
    s.type = "application/javascript;version=1.7";
    s.textContent = cdata.toString();
    var head = document.getElementsByTagName("head")[0];
    head.appendChild(s);
    head.removeChild(s);
})(<><![CDATA[

    // do somthing.

suvene

    function $XX(xpath, context, resolver) {
        context || (context = document);
        var doc = context.ownerDocument || context;
        var result = doc.evaluate(xpath, context, resolver, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
        result.__iterator__ = function() { for (let i = 0, len = this.snapshotLength; i < len; i++) yield this.snapshotItem(i); };
        return result
    }

suvene

var r = function(g){ var it = g(function(v){ it.send(v); }); it.next(); };
r(function(resume) {
    var res = yield util.httpGet(url, function(xhr) {
        resume(xhr.responseText);
    });

    alert(res);
  
    yield;
});