工作中常用的js、jquery自定义扩展函数代码片段汇总

//根据URL获取Idfunction GetQueryString(name) {  var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)");  var r = window.location.search.substr(1).match(reg);  if (r != null) return unescape(r[2]); return "";}

/* 在textarea处插入文本--Start */(function ($) {  $.fn.extend({    "insertContent": function (myValue, t) {      var $t = $(this)[0];      if (document.selection) { // ie         this.focus();        var sel = document.selection.createRange();        sel.text = myValue;        this.focus();        sel.moveStart('character', -l);        var wee = sel.text.length;        if (arguments.length == 2) {          var l = $t.value.length;          sel.moveEnd("character", wee + t);          t <= 0 ? sel.moveStart("character", wee - 2 * t - myValue.length) : sel.moveStart("character", wee - t - myValue.length);          sel.select();        }      } else if ($t.selectionStart       || $t.selectionStart == '0') {        var startPos = $t.selectionStart;        var endPos = $t.selectionEnd;        var scrollTop = $t.scrollTop;        $t.value = $t.value.substring(0, startPos)         + myValue         + $t.value.substring(endPos, $t.value.length);        this.focus();        $t.selectionStart = startPos + myValue.length;        $t.selectionEnd = startPos + myValue.length;        $t.scrollTop = scrollTop;        if (arguments.length == 2) {          $t.setSelectionRange(startPos - t,           $t.selectionEnd + t);          this.focus();        }      } else {        this.value += myValue;        this.focus();      }    }  })})(jQuery);/* 在textarea处插入文本--Ending */

$("#sltLabel").combobox({        onSelect: function (item) {          var item = $('#sltLabel').combobox('getValue');          if (item != undefined && item != null && item != "") {            if ($("#sltChannel").val() == 0) {              UE.getEditor('editor').focus();              UE.getEditor('editor').execCommand('inserthtml', '{' + item + '}');            } else {              $("#txtContent").insertContent('{' + item + '}');            }          }        }      });

 <select class="easyui-combobox" id="sltLabel" name="sltLabel" style="width: 150px" onselect="change()" data-options="panelWidth: 150,panelHeight: 'auto',valueField: 'Value',textField: 'Text'"> <option value="">选择要插入的标签</option></select>

// 对Date的扩展，将 Date 转化为指定格式的String// 月(M)、日(d)、小时(h)、分(m)、秒(s)、季度(q) 可以用 1-2 个占位符， // 年(y)可以用 1-4 个占位符，毫秒(S)只能用 1 个占位符(是 1-3 位的数字) // 例子： // (new Date()).Format("yyyy-MM-dd hh:mm:ss.S") ==> 2006-07-02 08:09:04.423 // (new Date()).Format("yyyy-M-d h:m:s.S")   ==> 2006-7-2 8:9:4.18 Date.prototype.Format = function (fmt) { //author: zouqj   var o = {    "M+": this.getMonth() + 1, //月份     "d+": this.getDate(), //日     "h+": this.getHours(), //小时     "m+": this.getMinutes(), //分     "s+": this.getSeconds(), //秒     "q+": Math.floor((this.getMonth() + 3) / 3), //季度     "S": this.getMilliseconds() //毫秒   };  if (/(y+)/.test(fmt)) fmt = fmt.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length));  for (var k in o)    if (new RegExp("(" + k + ")").test(fmt)) fmt = fmt.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));  return fmt;}

//获取当前时间，格式：yyyy-MM-dd hh:mm:ssfunction getNowFormatDate() {  var date = new Date();  var seperator1 = "-";  var seperator2 = ":";  var month = date.getMonth() + 1;  var strDate = date.getDate();  if (month >= 1 && month <= 9) {    month = "0" + month;  }  if (strDate >= 0 && strDate <= 9) {    strDate = "0" + strDate;  }  var currentdate = date.getFullYear() + seperator1 + month + seperator1 + strDate      + " " + date.getHours() + seperator2 + date.getMinutes()      + seperator2 + date.getSeconds();  return currentdate;}

//方式一function newPseudoGuid () {      var guid = "";      for (var i = 1; i <= 32; i++) {        var n = Math.floor(Math.random() * 16.0).toString(16);        guid += n;        if ((i == 8) || (i == 12) || (i == 16) || (i == 20))          guid += "-";      }      return guid;    }//方式二function S4() {  return (((1 + Math.random()) * 0x10000) | 0).toString(16).substring(1);}//生成guidfunction guid() {  return (S4() + S4() + "-" + S4() + "-" + S4() + "-" + S4() + "-" + S4() + S4() + S4());