js事件技巧方法整合

window.resizeTo(800,600); //js设置浏览器窗口尺寸 window.open

(function(){
    resizeTo(640,480);//设置浏览器窗口尺寸
    moveTo(0,0);//设置浏览器位置
})()

screen.availHeight;//显示屏最高高度
screen.availWidth;//显示屏最宽宽度

/*窗口改变大小 事件*/
//js
window.onresize = function()
{
    if(resizeTimer==null)
    {
      resizeTimer = setTimeout("doResize()",300);
    }
}
//jquery
 $(window).resize(function () {
        setTimeout(function () {
            var w = $(window).width();
            var h = $(window).height();

            $('.divLeft').animate({ height: h - 60 }, 500)
            $('.divRight').animate({ width: w - 189, height: h - 90 }, 500);
        }, 1);
})

/*checkbox 选择、取消 （筛选加入多个元素）*/
 $("#radyixiaofei_ctl01 tbody tr").add($("#RadGrid1_ctl01 tbody tr")).on("click", function () {
                $(this).find(":checkbox").attr("checked", function () { return !$(this).attr("checked") })
            });

 //取消浏览器的所有事件，使得active的样式在手机上正常生效
document.addEventListener("touchstart", function (e) {
    return false;
}, true);

//向上滚动
function BeatAll(id) {
    var container = document.getElementById(id);
    try {
        container.appendChild(container.firstChild);
    }
    catch (e) { }
}
//向下滚动
function BeatAllDown(id) {
    $("#" + id).prepend($("#" + id).children().last());
}
//setInterval("BeatAll(List0)", 10000);

var jsOpts = {
    //Select根据text选中  param
    setSelectDefualtValue: function (optionID, val) {
        $("#" + optionID + ">option").each(function () {
            var txtOption = $(this).text();
            if (txtOption.indexOf(val) > -1) {
                $(this).attr("selected", "selected");
                return false;
            }
        });
    },
    //input select初始化
    setDefualt: function (id) {
        $("input[type='text']", $("#" + id)).val("");
        $("select", $("#" + id)).each(function () {
            $(this).children("option:first").attr("selected", true);
        });
    },
    //input text 聚焦失焦效果
    focusEffect: function (obj) {
        //初始化
        $(obj).val($(obj).attr("title"));
        $(obj).css("color", "#777");

        $(obj).focus(function () {
            if ($(obj).val() == $(obj).attr("title")) {
                $(obj).val("");
            }
            else {
                $(obj).select();
            }
            $(obj).css("color", "#000");
        });
        $(obj).blur(function () {
            if ($(obj).val() == "") {
                $(obj).val($(obj).attr("title"));
                $(obj).css("color", "#777");
            }
        });
    },
    //checkbox全、反选
    checkFormAll: function (id, val) {
        $("#" + id).find("input[type='checkbox']").attr("checked", val);
    }
}

//计算每个字符出现的次数
    var t = "stringthatresults", i = 0, len = t.length,
    result = [],//输出结果
    hash = {};//hash表,用于记录是否重复计算字符
    for (i = 0; i < len; i++) {
        if (!hash[t.charAt(i)]) {
            hash[t.charAt(i)] = true;
            //分割当前字符本身，来获取出现次数
            result.push(t.charAt(i) + ":" + (t.split(t.charAt(i)).length - 1));
        }
    }
    document.writeln(JSON.stringify(result) + "<br />");

    result = [];
    var count = 0, tmp = "", arr = t.split("");
    for (i = 0; i < len; i++) {

        //替换当前字符，再通过与原有字符串长度做加减，来获取出现次数
        tmp = t.replace(new RegExp(arr[i], "g"), "");
        count = t.length - tmp.length;

        if (count > 0) {
            result.push(arr[i] + ":" + count);
        }
        t = tmp;
    }
    document.writeln(JSON.stringify(result));

//结果
["s:3","t:4","r:2","i:1","n:1","g:1","h:1","a:1","e:1","u:1","l:1"]
["s:3","t:4","r:2","i:1","n:1","g:1","h:1","a:1","e:1","u:1","l:1"]

var a = "stringthatresults";
    var b = {};
    var c = null;
    for (var i in a) {
        if (!isNaN(b[a[i]]++) || (b[a[i]] = 1)) {
            c = b[a[i]] > c ? a[i] : c;
        }
    }
    document.writeln(JSON.stringify(b));

//点击tr选中checkbox
            $("#idTable1 tbody tr").click(function () {
                var obj = $(this).find("input[type='checkbox']").first();
                $(obj).attr("checked", !$(obj).attr("checked"));
            }).find("input[type='checkbox']").click(function (event) {
                event.stopPropagation();
                //return false;
            })

js中的preventDefault和stopPropagation_阻止事件

<title>JS阻止链接跳转</title>
<script type="text/javascript">
function stopDefault( e ) {
     if ( e && e.preventDefault )
        e.preventDefault();
    else
        window.event.returnValue = false; 

    return false;
}
</script>
</head>
<body>
<a href="http://www.baidu.com" id="testLink">百度</a>
<script type="text/javascript">
var test = document.getElementById('testLink');
test.onclick = function(e) {
   alert('我的链接地址是：' + this.href + ', 但是我不会跳转。');
   stopDefault(e);
}
</script>

<title> 阻止JS事件冒泡传递（cancelBubble 、stopPropagation）</title>
<meta name="keywords" content="JS,事件冒泡,cancelBubble,stopPropagation" />
<script>
function doSomething (obj,evt) {
alert(obj.id);
var e=(evt)?evt:window.event;
if (window.event) {
   e.cancelBubble=true;     // ie下阻止冒泡
} else {
   //e.preventDefault();
   e.stopPropagation();     // 其它浏览器下阻止冒泡
}
}
</script>

加载JS方法：

//加载JS
function loadJsByUrl(url) {
    var head = document.getElementsByTagName('HEAD').item(0);
    var js = document.createElement("script");
    js.type = "text/javascript";
    js.src = url;
    head.appendChild(js);
    //var s = document.getElementsByTagName("script")[0];
    //s.parentNode.insertBefore(hm, s);
}

//加载JS并回调带参数的方法
function loadadByUrl(url, gpuri, imguri, fun) {
    var head = document.getElementsByTagName('HEAD').item(0);
    var js = document.createElement("script");
    js.type = "text/javascript";
    js.src = url;
    head.appendChild(js);
    var d = setInterval(function () {
        if (eval(fun) != 'defined') {
            eval(fun + '(\'' + gpuri + '\',\'' + imguri + '\')');
            clearInterval(d);
        }
    }, 500)
}

//获取url参数
function RequestFrom(key) {
    var locString = location.search;
    var reg = new RegExp("(\\?|\\&)" + key + "=([^\\&]*)(\\&?)", "i").exec(locString);
    if (reg != null) {
        return RegExp.$2;
    }
    else {
        return "";
    }
}

String.prototype.replaceAll = function (val, Reg) {
    return this.replace(new RegExp(val, "gm"), Reg);
}

//post提交
function httpPost(url, params, target) {
    var tempform = document.createElement("form");
    tempform.action = url;
    tempform.method = "post";
    tempform.style.display = "none"
    if (target) {
        tempform.target = target;
    }

    for (var x in params) {
        var opt = document.createElement("input");
        opt.name = x;
        opt.value = params[x];
        tempform.appendChild(opt);
    }

    var opt = document.createElement("input");
    opt.type = "submit";
    tempform.appendChild(opt);
    document.body.appendChild(tempform);
    tempform.submit();
    document.body.removeChild(tempform);
}

字符串扩展方法：

String.prototype.replaceAll = function (val, Reg) {
    return this.replace(new RegExp(val, "gm"), Reg);
}

String.prototype.Trim = function () {
    return this.replace(/(^\s*)|(\s*$)/g, "");
}
String.prototype.LTrim = function () {
    return this.replace(/(^\s*)/g, "");
}
String.prototype.RTrim = function () {
    return this.replace(/(\s*$)/g, "");
}

//进行四舍五入
Number.prototype.toFx = function () {
    var x = this;
    var f_x = parseFloat(x);
    if (isNaN(f_x)) {
        alert('输入不正确，请输入正确的阿拉伯数字');
        return false;
    }
    f_x = Math.round(x * 100) / 100;
    var s_x = f_x.toString();
    var pos_decimal = s_x.indexOf('.');
    if (pos_decimal < 0) {
        pos_decimal = s_x.length;
        s_x += '.';
    }
    while (s_x.length <= pos_decimal + 2) {
        s_x += '0';
    }
    return s_x;
}

//Float小数位修约
Math.formatFloat = function (f, digit) {
    var m = Math.pow(10, digit);
    return Math.round(f * m, 10) / m;
}
//间隔插入字符
String.prototype.IntervalInsert = function (i, str) {
    var ma = this.toString().match(new RegExp("\.{1," + i + "}", "g"));;
    return ma.join(str);
}

//自定义字典对象 JS Dictionary
// 自定义字典对象
function Dictionary() {
    this.keys = new Array();
    //添加键值对
    this.set = function (key, value) {
        if ($.inArray(key, this.keys) < 0) {//如键不存在则身【键】数组添加键名
            this.keys.push(key);
        }
    };

    this.existencekey = function (key) {
        var index = $.inArray(key, this.keys);
        return index >= 0 ? true : false;
    }
    //获取键对应的值
    //this.get = function (key) {
    //    return this.data[key];
    //};
    //移除
    this.remove = function (key) {
        this.keys.splice($.inArray(key, this.keys), 1);
    };
    //判断键值元素是否为空
    this.isEmpty = function () {
        return this.keys.length == 0;
    };
    //获取键值元素大小
    this.size = function () {
        return this.keys.length;
    };
}

/*js脚本文件延迟置后执行*/
//[defer]
<script defer="true"></script>
//告诉浏览器这段script不必立即执行，那么浏览器就会在完全载入文档之后再执行这个script，相当于window.onload，但它比window.onload更灵活。

//[async]
<scriptasync="true"></script>
//告诉浏览器该脚本不会在页面加载完成之前操作DOM，脚本将会和其他资源文件并行下载； HTML5新的异步、并行模式，脚本将在完成下载后等待合适的时机执行代码

/*框架中多级嵌套—调用方法*/
//js
window.top.document.getElementById("mainframe").contentDocument.getElementById("frameContent").contentWindow.fc();

//jquery
$(window.top.document.getElementById("mainframe")).contents().find("#frameContent")[0].contentWindow.fc();

//contentWindow 兼容各个浏览器，可取得子窗口的 window 对象。

//contentDocument Firefox、谷歌 支持，> ie8 的ie支持等。可取得子窗口的 document 对象。

//js日期格式化
Date.prototype.format = function (format) {
    var o =
    {
        "M+": this.getMonth() + 1, //month
        "d+": this.getDate(),    //day
        "h+": this.getHours(),   //hour
        "m+": this.getMinutes(), //minute
        "s+": this.getSeconds(), //second
        "q+": Math.floor((this.getMonth() + 3) / 3),  //quarter
        "S": this.getMilliseconds() //millisecond
    }
    if (/(y+)/.test(format))
        format = format.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length));
    for (var k in o)
        if (new RegExp("(" + k + ")").test(format))
            format = format.replace(RegExp.$1, RegExp.$1.length == 1 ? o[k] : ("00" + o[k]).substr(("" + o[k]).length));
    return format;
}

var dt=Dtime.format("yyyy-MM-dd hh:mm:ss")

        /*基于JS判断iframe是否加载成功的方法(多种浏览器）*/
        if (iframe.attachEvent) {
            iframe.attachEvent("onreadystatechange", function () {
                //此事件在内容没有被载入时候也会被触发，所以我们要判断状态
                //有时候会比较怪异 readyState状态会跳过 complete 所以我们loaded状态也要判断
                if (iframe.readyState === "complete" || iframe.readyState == "loaded") {
                    //代码能执行到这里说明已经载入成功完毕了
                    //要清除掉事件
                    iframe.detachEvent("onreadystatechange", arguments.callee);
                    //这里是回调函数
                }
            });
        } else {
            iframe.addEventListener("load", function () {
                //代码能执行到这里说明已经载入成功完毕了
                this.removeEventListener("load", arguments.call, false);
                //这里是回调函数
            }, false);
        }

/*WdatePicker日历控件多种日期格式切换*/
function setDateInput(vt) {
    var $tp_ST = $("#txtSTime");
    var $tp_ET = $("#txtETime");

    var $ST = $tp_ST.clone(false);
    var $ET = $tp_ET.clone(false);
    $tp_ST.parent().empty().append($ST);
    $tp_ET.parent().empty().append($ET);

    if (vt == 0) {
        $ST.click(function () {
            WdatePicker({ dateFmt: 'yyyy-MM-dd HH:00', maxDate: '#F{$dp.$D(\'txtETime\')}' });
        });
        $ET.click(function () {
            WdatePicker({ dateFmt: 'yyyy-MM-dd HH:00', maxDate: '%y-%M', minDate: '#F{$dp.$D(\'txtSTime\')}' });
        });

        var startdate = new Date();
        $ET.val(utils.formatDate(startdate, "yyyy-MM-dd hh:00"));
        startdate.setHours(startdate.getHours() - 4);
        $ST.val(utils.formatDate(startdate, "yyyy-MM-dd hh:00"));
    }
    else if (vt == 1) {
        $ST.click(function () {
            WdatePicker({ dateFmt: 'yyyy-MM-dd', maxDate: '#F{$dp.$D(\'txtETime\')}' });
        });
        $ET.click(function () {
            WdatePicker({ dateFmt: 'yyyy-MM-dd', maxDate: '%y-%M-%d', minDate: '#F{$dp.$D(\'txtSTime\')}' });
        });

        var startdate = new Date();
        startdate.setDate(startdate.getDate() - 1);
        $ST.val(utils.formatDate(startdate, "yyyy-MM-dd"));
        $ET.val(utils.formatDate(startdate, "yyyy-MM-dd"));
    } else if (vt == 2) {
        $ST.click(function () {
            WdatePicker({ isShowWeek: true, onpicked: GetWeek1, firstDayOfWeek: 1, errDealMode: 3, isShowClear: false })
        });
        $ET.click(function () {
            WdatePicker({ isShowWeek: true, onpicked: GetWeek2, firstDayOfWeek: 1, errDealMode: 3, isShowClear: false })
        });
    } else if (vt == 3) {
        $ST.click(function () {
            WdatePicker({ dateFmt: 'yyyy-MM', maxDate: '#F{$dp.$D(\'txtETime\')}' });
        });
        $ET.click(function () {
            WdatePicker({ dateFmt: 'yyyy-MM', maxDate: '%y-%M', minDate: '#F{$dp.$D(\'txtSTime\')}' });
        });

        var startdate = new Date();
        startdate.setMonth(startdate.getMonth() - 1);
        //时间多月
        $ST.val(utils.formatDate(startdate, 'yyyy-MM'));
        $ET.val(utils.formatDate(startdate, 'yyyy-MM'));
    }
    else if (vt == 4) {
        $ST.click(function () {
            WdatePicker({ dateFmt: 'yyyy-MM季', isQuarter: true, isShowOK: false, disabledDates: ['....-0[5-9]-..', '....-1[0-2]-..'], startDate: '%y-01-01' });
        });
        $ET.click(function () {
            WdatePicker({ dateFmt: 'yyyy-MM季', isQuarter: true, isShowOK: false, disabledDates: ['....-0[5-9]-..', '....-1[0-2]-..'], startDate: '%y-01-01' });
        });
    }
    else if (vt == 5) {
        $ST.click(function () {
            WdatePicker({ dateFmt: 'yyyy' });
        });
        $ET.click(function () {
            WdatePicker({ dateFmt: 'yyyy' });
        });
    }
}
function GetWeek1() {
    $dp.$('txtSTime').value = $dp.cal.getP('y') + "-" + $dp.cal.getP('W', 'WW') + "周";
    $("#hdSTime").val($dp.cal.getP('y') + "-" + $dp.cal.getP('M') + "-" + $dp.cal.getP('d'));
}
function GetWeek2() {
    $dp.$('txtETime').value = $dp.cal.getP('y') + "-" + $dp.cal.getP('W', 'WW') + "周";
    $("#hdETime").val($dp.cal.getP('y') + "-" + $dp.cal.getP('M') + "-" + $dp.cal.getP('d'));
}

未写完……