js自己封装的开发使用工具方法总结

来源：互联网发布：分层匹配追踪算法编辑：程序博客网时间：2024/05/10 21:39
var commonfn = {};!function (c) {    //删除字符串前后的空格    String.prototype.trim = function () {        return this.replace(/(^\s*)|(\s*$)/g, "");    }    //获取url地址栏参数值    function queryString(name) {        /// 获取QueryString        if (name == null || name == "" || name == undefined) {            var AllVars = window.location.search.substring(1);            return AllVars.split("&");        }        else {            var AllVars = window.location.search.substring(1);            var Vars = AllVars.split("&");            for (i = 0; i < Vars.length; i++) {                var Var = Vars[i].split("=");                if (Var[0] == name) return Var[1];            }            return "";        }    };    //改变地址栏参数值    function changeParam(name, value) {        var url = window.location.href;        var newUrl = "";        var reg = new RegExp("(^|)" + name + "=([^&]*)(|$)");        var tmp = name + "=" + value;        if (url.match(reg) != null) {            newUrl = url.replace(eval(reg), tmp);        }        else {            if (url.match("[\?]")) {                newUrl = url + "&" + tmp;            }            else {                newUrl = url + "?" + tmp;            }        }        location.href = newUrl;    }    //只能输入金额    function clearNoNum(obj) {        if (obj.value == "0") {        } else {            var firstNum = obj.value.toString().substring(0, 1);            if (obj.value.length > 1 && firstNum == "0") {                var second = obj.value.toString().substring(1, 2);                if (second == "0") {                    obj.value = "0";                }            }        }        //先把非数字的都替换掉，除了数字和.        obj.value = obj.value.replace(/[^\d.]/g, "");        //必须保证第一个为数字而不是.        obj.value = obj.value.replace(/^\./g, "");        //保证只有出现一个.而没有多个.        obj.value = obj.value.replace(/\.{2,}/g, ".");        //保证.只出现一次，而不能出现两次以上        obj.value = obj.value.replace(".", "$#$").replace(/\./g, "").replace("$#$", ".");    }    //删除小数后面的小数点    function delNumHouDian(obj) {        var endstr = obj.value.substring(obj.value.length - 1);        if (endstr == ".") {            obj.value = obj.value.substring(0, obj.value.length - 1);        }    }    //小数格式化,num是要格式话的数字，len是要保留的小数位数    function cutXiaoNum(num, len) {        var numStr = num.toString();        if (len == null || len == undefined) {            len = numStr.length;        }        var index = numStr.indexOf('.');        if (index == -1) {            index = numStr.length;            numStr += ".0000000000000";        } else {            numStr += "0000000000000";        }        var newNum = numStr.substring(0, index + len + 1);        return newNum;    }    //将时间戳转换为时间字符串格式15:18:13    function getTimeStampTime(timeStamp) {        ///<summary>        ///将时间戳转换为时间字符串，返回格式15:18:13        /// </summary>        /// <param name="timeStamp">时间戳，整数</param>        var d = new Date(parseInt(timeStamp) * 1000);        var h = d.getHours();        var m = d.getMinutes();        var s = d.getSeconds();        if (d.getHours() == 0) {            h = "00";        }        if (d.getHours() < 10) {            h = "0" + d.getHours();        }        if (m == 0) {            m = "00";        }        if (d.getMinutes() < 10) {            m = "0" + d.getMinutes();        }        if (s == 0) {            s = "00";        }        if (d.getSeconds() < 10) {            s = "0" + d.getSeconds();        }        var time = h + ":" + m + ":" + s;        return time;    }    //将时间戳转换为分钟格式16:08    function getTimeStampToMinutes(timeStamp) {        ///<summary>        ///将时间戳转换为时间字符串，返回格式15:18        /// </summary>        /// <param name="timeStamp">时间戳，整数</param>        var d = new Date(parseInt(timeStamp));        var h = d.getHours();        var m = d.getMinutes();        if (d.getHours() == 0) {            h = "00";        }        if (d.getHours() < 10) {            h = "0" + d.getHours();        }        if (m == 0) {            m = "00";        }        if (d.getMinutes() < 10) {            m = "0" + d.getMinutes();        }        var time = h + ":" + m;        return time;    }         c.changeParam = changeParam;    c.queryString = queryString;    c.clearNoNum = clearNoNum;    c.delNumHouDian = delNumHouDian;    c.cutXiaoNum = cutXiaoNum;    c.getTimeStampTime = getTimeStampTime;    c.getTimeStampToMinutes = getTimeStampToMinutes; }(commonfn);
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