Html & CSS & JavaScript

來源:互聯網
上載者:User
消除用戶端緩衝 

<meta http-equiv="pragma" content="no-cache" />

jQuery.validate 檢查單個控制項 

validator.element(控制項元素)

單例和私人成員封裝執行個體
var singleton = function () {  var privateVariable;  function privateFunction(x) {  ...privateVariable...  }   return {  firstMethod: function (a, b) {  ...privateVariable...  },  secondMethod: function (c) {  ...privateFunction()...  }  };  }();
js或者jquery無限滾動實現原理:
$(window).bind("scroll",function(){// 然後判斷視窗的捲軸是否接近頁面底部,這裡的20可以自訂if( $(document).scrollTop() + $(window).height() > $(document).height() - 20 ){$.ajax({//ajax代碼,非同步載入資料//一般的會callback,將資料填入固定的選取器中})}})

給視窗綁定上一個scroll事件,即滾動的時候判斷,$(document).scrollTop() 捲軸滾動的高度+$(window).height()視窗的高度>$(document).height()頁面的整體高度-20個像素之所以減去20個像素是在距離底部還有20個像素的時候預先載入,可以設定為0,即滾動到底部才載入。

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