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  • js实现日期验证

    直接上代码:

    function dateValidate(date, dateformat, separator) {

                if (date == null || date == "") return false;


                var date_part_index = datePartIndex(dateformat, separator);
                var date_array = date.split(separator);
                var yearstr = date_array[date_part_index.y];
                var monthstr = date_array[date_part_index.m];
                var daystr = date_array[date_part_index.d];

                if (isNaN(yearstr)) return false;
                if (isNaN(monthstr)) return false;
                if (isNaN(daystr)) return false;

                var year = parseInt(yearstr);
                var month = parseInt(monthstr)-1;
                var day = parseInt(daystr);
                var date = new Date(year, month, day);
                var y = date.getFullYear();
                var m = date.getMonth();
                var d = date.getDate();
                if (y != year || m != month || d != day) {
                    return false;
                }
                return true;
            }

    function datePartIndex(dateformat, separator) {
                var partIndex = {};
                var part_array = dateformat.split(separator);
                for (var i = 0; i < part_array.length; i++) {
                    switch (part_array[i]) {
                        case "YYYY":
                            partIndex.y = i;
                            break;
                        case "MM":
                            partIndex.m = i;
                            break;
                        case "dd":
                            partIndex.d = i;
                            break;
                    }
                }
                return partIndex;

    }

    dateValidate 是实现js日期验证的方法

    datePartIndex 是实现js日期验证的辅助方法

    下面日期证验的一些测试用例

    alert(dateValidate("2005-10-21","YYYY-MM-dd","-") == true);
    alert(dateValidate("2005-10-213","YYYY-MM-dd","-") == false);
    alert(dateValidate("200a5-10-10","YYYY-MM-dd","-") == false);
    alert(dateValidate("a2005-10-10","YYYY-MM-dd","-") == false);
    alert(dateValidate("2005a-10-10","YYYY-MM-dd","-") == false);
    alert(dateValidate("02005-1-1","YYYY-MM-dd","-") == true);
    alert(dateValidate("2005-12-32","YYYY-MM-dd","-") == false);
    alert(dateValidate("2005-13-3","YYYY-MM-dd","-") == false);
    alert(dateValidate("2005-12-12","YYYY-MM-dd","-") == true);
    alert(dateValidate("2005-2-30","YYYY-MM-dd","-") == false);
    alert(dateValidate("2005-(-12)-3","YYYY-MM-dd","-") == false);
    alert(dateValidate("2005-(12)-3","YYYY-MM-dd","-") == false);
    alert(dateValidate("0-0-0","YYYY-MM-dd","-") == false);
    alert(dateValidate("1-1-1","YYYY-MM-dd","-") == false);
    alert(dateValidate("2005-2-30","YYYY-MM-dd","-") == false); 
    alert(dateValidate("2012-2-30","YYYY-MM-dd","-") == false);
    alert(dateValidate("2012-2-29","YYYY-MM-dd","-") == true);
    alert(dateValidate("2012/2/29", "YYYY/MM/dd", "/") == true);
    alert(dateValidate("2/29/2012", "MM/dd/YYYY", "/") == true);

    以上测试用例的返回结果都应该是true,就正确。

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  • 原文地址:https://www.cnblogs.com/itprogrammer/p/2792889.html
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