/** * 返回數組某個值的下標 * */ Array.prototype.position = function(val){ for(var i in this){ if(this[i]==val){ return i; break; } } return -1; } /** *刪除數組中某個值 * */ Array.prototype.remove_value = function(val) { for (var i = 0; i < this.length; i++) { if (this[i] == val) { this.splice(i, 1); break; } } } /** * 判斷數組是否存在某個值 * */ Array.prototype.in_array=function(val){ this.S = String.fromCharCode(2); var r = new RegExp(this.S + val + this.S); return (r.test(this.S + this.join(this.S) + this.S)); } /** * 数组去重复 * */ Array.prototype.array_unique = function(){ var m,n = [],o= {}; for (var i = 0; (m = this[i]) !== undefined; i++){ if (!o[m]){ n.push(m); o[m] = true; } } return n; } /** *刪除字符串的空格換行符囘車符 * */ String.prototype.trim = function(){ return this.replace(/(\ +)|([ ])|([\r\n])/g, ""); } String.prototype.is_email = function(){ var reg = /^[A-Za-z\d]+([-_\.\+]*[A-Za-z\d])*@([A-Za-z\d-]{0,61}[A-Za-z\d]\.)+[A-Za-z\d]{2,6}$/; return reg.test(this); } /** * 判斷是否為數組 不包括對象 * 很好解決跨 iframe 判斷是的問題 */ function is_array(obj){ return Object.prototype.toString.call(obj) === ‘[object Array]‘; } //判断是否为空 function is_empty(str){ if(str==null || typeof str=="undefined" || str.trim()==""){ return true; }else{ return false; } } //添加收藏夹 function add_favorite() { var title = "收藏", url = ‘http://www.baidu.com‘; try { window.external.AddFavorite(url, title); } catch(e){ try { window.sidebar.addPanel(title, url, ""); } catch (e) { alert("您使用的浏览器暂不支持此功能,请自行加入收藏。"); } } addCtpv(100, "AddFavorite"); } //复制到剪贴板 function copy_to_clipboard(txt) { if (window.clipboardData) { window.clipboardData.clearData(); window.clipboardData.setData("Text", txt); } else if (navigator.userAgent.indexOf("Opera") != -1) { window.location = txt; } else if (window.netscape) { try { netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect"); } catch (e) { alert("被浏览器拒绝!\n请在浏览器地址栏输入‘about:config‘并回车\n然后将‘signed.applets.codebase_principal_support‘设置为‘true‘"); } var clip = Components.classes[‘@mozilla.org/widget/clipboard;1‘].createInstance(Components.interfaces.nsIClipboard); if (!clip) return; var trans = Components.classes[‘@mozilla.org/widget/transferable;1‘].createInstance(Components.interfaces.nsITransferable); if (!trans) return; trans.addDataFlavor(‘text/unicode‘); var str = new Object(); var len = new Object(); var str = Components.classes["@mozilla.org/supports-string;1"].createInstance(Components.interfaces.nsISupportsString); var copytext = txt; str.data = copytext; trans.setTransferData("text/unicode", str, copytext.length * 2); var clipid = Components.interfaces.nsIClipboard; if (!clip) return false; clip.setData(trans, null, clipid.kGlobalClipboard); alert("复制成功!") } } /** * 讀取COOKIE */ function get_cookie(name){ var arg = decodeURIComponent(name) + "="; var alen = arg.length; var clen = document.cookie.length; var i = 0; var endstr = null; while (i < clen) { var j = i + alen; if (document.cookie.substring(i, j) == arg){ endstr = document.cookie.indexOf (";", j); if (endstr == -1) endstr = document.cookie.length; return decodeURIComponent(document.cookie.substring(j, endstr)); } i = document.cookie.indexOf(" ", i) + 1; if (i == 0) break; } return null; } /** * 设置COOKIE expires 分鐘 */ function set_cookie(name, value){ var argv = set_cookie.arguments; var argc = set_cookie.arguments.length; var expires = (argc > 2) ? argv[2] : null; var path = (argc > 3) ? argv[3] : null; var domain = (argc > 4) ? argv[4] : null; var secure = (argc > 5) ? argv[5] : false; if(expires){ var exp = new Date(); exp.setTime(exp.getTime() + expires*60*1000); expires = exp; } document.cookie = encodeURIComponent(name) + "=" + encodeURIComponent (value) + ((expires == null) ? "" : ("; expires=" + expires)) + ((path == null) ? "" : ("; path=" + path)) + ((domain == null) ? "" : ("; domain=" + domain)) + ((secure == true) ? "; secure" : ""); } /** * 刪除COOKIE */ function delete_cookie(name){ var exp = new Date(); exp.setTime (exp.getTime() - 1); var cval = 0; document.cookie = encodeURIComponent(name) + "=" + cval + "; expires=" + exp.toGMTString(); } /** * 出loading message 兼容IE * @param message 等於false 則隱藏 * @param overlay false 不出遮罩層 * */ function loading_message(message, overlay){ $("#show_loading_message_container,#show_loading_message_layer").remove(); if(message !== false){ var div_html = ‘‘; if(overlay !== false){//overlayer設置 div_html = ‘<div id="show_loading_message_layer" style="position:fixed;left:0;top:0;z-index:99998;background:#ddd;width:‘+$(document).width()+‘px;height:‘+$(document).height()+‘px"></div>‘; } div_html += ‘<div id="show_loading_message_container" style="overflow:hidden;background: #333;width: 269px;height: 107px;position: absolute;left: -1000px;top: -1000px;text-align: center;">‘; div_html += ‘<span style="color: #FFF;line-height: 107px;font-size: 23px; white-space: nowrap;"> ‘; div_html += ‘<img src="style/images/load.gif" style="vertical-align: middle;"/> ‘+message+‘</span></div>‘; var $div = $(div_html); var $container = overlay !== false ? $div.eq(0).css(‘opacity‘, 0.30).siblings(‘#show_loading_message_container‘) : $div; $("body").append($div); $container.css({zIndex:99999, left:parseInt(($(window).width()-$container.width())/2), top:parseInt($(window).scrollTop()+($(window).height()-$container.height())/2)}); $(window).on(‘resize‘, function(){ $("#show_loading_message_layer").hide().css({width:$(document).width()+‘px‘, height:$(document).height()+‘px‘}).show();//先隱藏之前的取到真實的 var $message_container = $("#show_loading_message_container"); $message_container.css({left:parseInt(($(window).width()-$message_container.width())/2), top:parseInt($(window).scrollTop()+($(window).height()-$message_container.height())/2)}); }); } } /** * check_uncheck 全選; 反選,單一反選去全選, 滿單選選全選 * 指定 checkedall 的checkbox checkedall=‘true‘ * $.check_uncheck(checkbox_name); */ jQuery.check_uncheck = function(checkbox_name){ var $checkbox = $("input[name=‘"+checkbox_name+"‘]");//要操作的 checkbox 的對象包括了全選的checkbox var $checkallobj = $checkbox.filter("input[checkedall=‘true‘]").eq(0);//全選的checkbox $checkbox.on("click", function(){ if($(this).is(":checked")){ if($(this).is($checkallobj)){ $checkbox.attr("checked", "checked"); }else{ if($checkbox.filter(":checked").length + 1 >= $checkbox.length){ $checkallobj.attr("checked", "checked"); } } }else{ if($(this).is($checkallobj)){ $checkbox.removeAttr("checked"); }else{ $checkallobj.removeAttr("checked"); } } }); }; //對象級的函數 /* show_message * _position_flag={left: ‘+100‘, top: ‘-100‘}信息提示 位置適合于任何坐標 false的時候則根據當前對象取坐標,不填則中間位置 */ (function($){ $.fn.show_message = function (_message, _position_flag, _times){ var $this = $(this), sm_top = 0, sm_left = 0; if($this && (typeof(_position_flag) === "object") || _position_flag === false){ var setting = {left: ‘+0‘, top: ‘-0‘}; // /(\+|\-)\s*\d+/ $.extend(setting, _position_flag); sm_top = parseInt( eval( $this.offset().top + setting.top )); sm_left = parseInt( eval( $this.offset().left + setting.left )); }else{ sm_top = $(window).height()/2; sm_left = $(window).width()/2; } var $message_obj = $(‘<span id="show_msg_tips" style="background:#FCE08E;border:1px solid #FF9933;color:#4B4B93;display:none;font-size:13px;font-weight:bold;line-height:25px;max-width:380px; min-width:200px;padding:8px;position:fixed;z-index:99999;">‘+ _message +‘</span>‘); $("#show_msg_tips").remove(); $message_obj.appendTo(‘body‘).show().css({left:sm_left-$message_obj.width()/2, top:sm_top-$message_obj.height()/2}); setTimeout(function(){ $message_obj.fadeOut(1000); }, _times ? _times : 1800); } })(jQuery); /**兼容性 * //绑定事件 window onload var addEvent = document.addEventListener ? function(el,type,callback){ el.addEventListener( type, callback, !1 ); } : function(el,type,callback){ el.attachEvent( "on" + type, callback ); } //移除事件 var removeEvent = document.removeEventListener ? function(el,type,callback){ el.removeEventListener( type, callback ); } : function(el,type,callback){ el.detachEvent( "on" + type, callback); } removeEvent(document,"mousemove",function); */
自己用的javascript 共用函数,布布扣,bubuko.com
原文:http://www.cnblogs.com/timily/p/3807160.html