Question

我的代码如下所示：

CREATE TRIGGER `audit_events_nice`
AFTER UPDATE ON `accounts`
FOR EACH ROW
BEGIN
       DECLARE changes VARCHAR(8000);
       DECLARE N INT DEFAULT 1;
       FOREACH OLD, NEW as OldValue, NewValue 
       BEGIN
              IF OldValue <> NewValue THEN
              SET changes = CONCAT(changes, ', column N: % to %');
              SET N = N + 1;
       END IF;
       CALL reg_event(how_canI_get_tableName?, @user_id, changes);
       -- now I can paste this code in every table that is audited..
END;

我希望每隔5000秒显示不同的通知，例如：TestA，TestB，Test3。我尝试过这样的事情：

$(document).ready(function() {

  var callnotification = function() {
  $.sticky('<b>TestA</b>');
  }
  setInterval(callnotification, 5000);
});

但它似乎成倍增加。我认为这是因为函数互相循环，它显示如下通知：测试A. 测试B. 测试B. 测试B. 测试C. 测试B. 测试A. 等。

那么..我怎么能循环呢？假设我想从测试A循环到测试M并再次从测试A循环到测试M.

Answer 1

试试这个：

 $(document).ready(function() {
      var callnotification = function() {
      var counter = 65;
      $.sticky('<b>Test' + String.fromCharCode(counter++) + '</b>');
      }
      setInterval(callnotification, 5000);
    });

从M重新循环到A：

$(document).ready(function() {
          var callnotification = function() {
          var counter = 65;
          $.sticky('<b>Test' + String.fromCharCode(counter++) + '</b>');
          if (counter == 78) {counter = 65};
          }
          setInterval(callnotification, 5000);
        });

Answer 2

试试这个：

var i = 0;
var letters = ['A', 'B', 'C'];

var callnotification = function(msg) {
   $.sticky('<b>'+msg+'</b>');
}

var t = setInterval(function(){
   callnotification('Test'+letters[i%letters.length]);
   i++;
},5000);

<强>段： http://codepen.io/anon/pen/mPbpbm

Answer 3

在我看来，Sticky js是一个很差的库。

请改用此Notification Manager

以下是您的案例的几个示例，看看哪一个适合您：

$(function() {
  var charCode = 65;

  setInterval(function() {

    var notification = window.createNotification();
    var msg = 'Test ' + String.fromCharCode(charCode++);
    notification.addMsg({
      text: msg, type: 'alert'
    });

    notification.render(null, function(notif) {
      // example 1
      notif.destroy(5000);

      /* example 2
          notif.destroy(5000, function() {
            var newNotif = window.createNotification();
            newNotif.addMsg({
              text: '(' + msg + ' is closed)',
              type: 'info'
            });
            newNotif.render();
          });
          */


      /* example 3
          var newNotif = window.createNotification();
          newNotif.addMsg({text:'('+msg+' is closed)', type:'info'});
          newNotif.render(5000);
          */
    });

    (charCode == 78) && (charCode = 65);
  }, 1000);
});

我怎样才能循环我的代码？

3 个答案: