如何在js的同一頁面上創建多個實例function

Question

考慮以下代碼片段：

    var from,to;
    to = $(".range-to-dt").persianDatepicker({
    inline: true,
    minDate: new persianDate(cleanDate(serverDateTime)),
    altField: '.range-to-dt-alt',
    altFormat: 'YYYY/MM/DD',
    initialValue: false,
    onSelect: function (unix) {
        to.touched = true;
        if (from && from.options && from.options.maxDate != unix) {
            var cachedValue = from.getState().selected.unixDate;
            from.options = { maxDate: unix };
            if (from.touched) {
                from.setDate(cachedValue);
            }
        }
    }
});
from = $(".range-from-dt").persianDatepicker({
    inline: true,
    observer: true,
    minDate: new persianDate(cleanDate(serverDateTime)),
    altField: '.range-from-dt-alt',
    altFormat: 'YYYY/MM/DD',
    initialValue: false,
    onSelect: function (unix) {
        from.touched = true;
        if (to && to.options && to.options.minDate != unix) {
            var cachedValue = to.getState().selected.unixDate;
            to.options = { minDate: unix };
            if (to.touched) {
                to.setDate(cachedValue);
            }
        }
    }
});

如何在同一頁面上多次（以幾種不同的形式）使用 js function 來正確執行？

<form id="form1" ...>
   <input asp-for="DateTimeRange.StartDate"  ltr-input range-from-dt-alt">
   <input asp-for="DateTimeRange.EndDate"  ltr-input range-to-dt-alt">
</form>
<form id="form2" ...>
    <input asp-for="DateTimeRange.StartDate"   ltr-input range-from-dt-alt">
   <input asp-for="DateTimeRange.EndDate"  ltr-input range-to-dt-alt">
</form>

實際上如何在js function的同一頁面上創建多個實例？

Answer 1

您必須遍歷包含 2 個輸入的每個表單。

例如，您可以將 class 添加到表單而不是 ID，例如

<form class="startEndForm">
   // Your 2 inputs here
</form>

然后做這樣的事情：

$('.startEndForm').each(function () {
 $(this).find(".range-to-dt").persianDatepicker({
    inline: true,
    minDate: new persianDate(cleanDate(serverDateTime)),
    altField: '.range-to-dt-alt',
    altFormat: 'YYYY/MM/DD',
    initialValue: false,
    onSelect: function (unix) {
        var from = $(this).parent().find('.range-from-dt');
        var to = $(this);
        to.touched = true;
        if (from && from.options && from.options.maxDate != unix) {
            var cachedValue = from.getState().selected.unixDate;
            from.options = { maxDate: unix };
            if (from.touched) {
                from.setDate(cachedValue);
            }
        }
    }
});
$(this).find(".range-from-dt").persianDatepicker({
    inline: true,
    observer: true,
    minDate: new persianDate(cleanDate(serverDateTime)),
    altField: '.range-from-dt-alt',
    altFormat: 'YYYY/MM/DD',
    initialValue: false,
    onSelect: function (unix) {
        var from = $(this);
        var to = $(this).parent().find('.range-to-dt');
        from.touched = true;
        if (to && to.options && to.options.minDate != unix) {
            var cachedValue = to.getState().selected.unixDate;
            to.options = { minDate: unix };
            if (to.touched) {
                to.setDate(cachedValue);
            }
        }
    }
});
});