Question

我已经编写了这个JavaScript函数来计算从日期输入开始的年和月的差异，但是月份不是以“整体”形式计算的，这意味着差异应该在月份前几天相隔1个月计数增量。

目前，它计算2016-05-30和2016-06-02之间的差异为1个月，即使它实际上不等于一个月。我不需要显示天数，但是如果使用这个例子，我希望输出为0个月。

请提供指导。见下面的功能。

$scope.calculateEmploymentPeriod = function(dateString){
        var today = new Date();
        var startDate = new Date($scope.data.client.date_appointed);
        var years_diff = today.getFullYear() - startDate.getFullYear();
        var m = today.getMonth() - startDate.getMonth();
        var months_count = (years_diff * 12) + m;

        if (m < 0 || (m == 0 && today.getDate() < startDate.getDate())) {
            years_diff--;
            months_count = months_count - (years_diff * 12); 
        }else if (months_count > 11){
            months_count = months_count - (years_diff * 12); 
        }else if (months_count == 11){
            months_count = months_count - (years_diff * 12); 
            years_diff--;
        }

        $scope.data.client.employment_duration_years = years_diff;
        $scope.data.client.employment_duration_months = months_count;
}

我想通过添加另一个子句来编辑此版本。

Answer 1

try to put something like this..

else if(m==1 && today.getDate() < startDate.getDate()) {    
                months_count = months_count - (years_diff * 12) - 1;
            }

Answer 2

$scope.calculateEmploymentPeriod = function(dateString){
    var today = new Date();
    var startDate = new Date($scope.data.client.date_appointed);

    var years_diff = today.getFullYear() - startDate.getFullYear();

    var days_diff = today.getDate() - startDate.getDate()

    var months_count = today.getMonth() - startDate.getMonth();

      if (months_count<0) {months_count+=12;years_diff--}
      if (days_diff<0) months_count--;
      if (months_count<0) {months_count=0;}


    $scope.data.client.employment_duration_years = years_diff;
    $scope.data.client.employment_duration_months = months_count;
}

使用整月的日期Javascript差异

2 个答案: