I have a Lightning component with a Javascript jQuery Data Picker for use in a Flow Screen to create child "Subscription" records. I have configured the Javascript to allow input of Date Ranges and restrict already selected Date Ranges when creating the child records.
I would like to store the previously selected Date Ranges on the parent record and pass this to the jQuery component via the Flow.

When I set the 2 Dimensional Array statically in the Javascript this properly restricts the multiple ranges However when I try to pass this as aura attribute with type="String[] only the Start and end Dates of each range are restricted.
How can I adjust my Component and/or Javascript to support restricting the multiple ranges?

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<aura:component implements="lightning:availableForFlowScreens" access="global">
    <!-- Component Attributes--> 
    <aura:attribute name="restrictedDates" type="String[]" />

    <!--add jQuery UI style CSS file and jQuery, jQuery UI javaScript files-->
    <ltng:require styles="{! $Resource.jQuery_UI + '/jquery-ui-1.12.1/jquery-ui.min.css'}" 
                           $Resource.jquery224 ,   
                           $Resource.jQuery_UI + '/jquery-ui-1.12.1/jquery-ui.min.js')
                           }" afterScriptsLoaded="{!c.scriptsLoaded}"/>
    <input type="text" class="slds-input" id="datepickerId" />


    scriptsLoaded : function(component, event, helper) {

        //var date_range = [["07-03-2022","07-05-2022"],["07-09-2022","07-11-2022"]];
        var date_range = component.get('v.restrictedDates');
          //Restrict past date selection in date picker  
            $( "#datepickerId" ).datepicker({ 
                minDate: "-1D", 
                maxDate: "+1Y",
                dateFormat : "mm-dd-yy",    
                numberOfMonths: 1,
                showAnim : "fadeIn",
                onSelect: function( selectedDate ) {
                        $(this).data().datepicker.inline = true
                        $(this).data().datepicker.first = selectedDate;
                        $(this).data().datepicker.s_first = selectedDate;
                        delete $(this).data().datepicker.s_second;
                        if(selectedDate > $(this).data().datepicker.first){
                            $(this).data().datepicker.s_second = selectedDate;
                            $(this).data().datepicker.s_first = $(this).data().datepicker.first;
                            $(this).val($(this).data().datepicker.first + " to " + selectedDate);
                            //$(this).val("\[\"" + $(this).data().datepicker.first +"\"" + "," + "\"" + selectedDate + "\"\]");
                            $(this).val(selectedDate + " to " + $(this).data().datepicker.first);
                            //$(this).val("\[\"" + selectedDate +"\"" + "," + "\"" + $(this).data().datepicker.first + "\"\]");
                            $(this).data().datepicker.s_second = $(this).data().datepicker.first;
                            $(this).data().datepicker.s_first = selectedDate;
                        $(this).data().datepicker.inline = true;
                        var $this = $(this);
                            $this.data().datepicker.inline = false;
                    $(this).datepicker("show"); // update the dates
                beforeShowDay: function(date) {
                    var string = $.datepicker.formatDate('mm-dd-yy', date);
                    for (var i = 0; i < date_range.length; i++) {
                        if (Array.isArray(date_range[i])) {
                            var from = new Date(date_range[i][0]);
                            var to = new Date(date_range[i][1]);
                            var current = new Date(string);
                            if (current >= from && current <= to) return false;
                    return [date_range.indexOf(string) == -1]
                    delete $(this).data().datepicker.first;             
                    $(this).data().datepicker.inline = false;
    getVal : function(component,event,helper){
        // to get selected date value using jQuery  
        var oDate = $('#datepickerId').val();
  • Where are you getting the values from on this line component.get('v.restrictedDates');? Is it stored in the parent record? is yes, can you show me the exact format in which it's stored?
    – arut
    Jul 3, 2022 at 5:34
  • I suspect that the string[] attribute isn't getting the values as array of array and hence, you may be running into this problem.
    – arut
    Jul 3, 2022 at 8:47
  • @arut below is the value I am storing in the restrictedDates string: [["07-03-2022","07-05-2022"],["07-09-2022","07-11-2022"]] If I use the same value in the Javascript it properly restricts the entire range. (This is commented out on Line 5) Jul 3, 2022 at 14:14
  • But when are you populating the value in the aura attribute? in the initialization method? Is it stored in a record which is fetched and passed to the attribute using component.set method?
    – arut
    Jul 3, 2022 at 15:10

1 Answer 1


Because you are passing in an array of strings (String[]), you, by definition must be passing in something like this:


Which is actually ['string','string']

This is not going to work when you pass it to the date picker.

You could try to parse each string in this array in a forEach loop or map, eg:

let restrictedDatesRaw = component.get('v.restrictedDates');
let restrictedDates = restrictedDatesRaw.map(datestring => JSON.parse(datestring));

or you could pass a completely stringified array to the component:

<aura:attribute name="restrictedDates" type="String" />

Then parse:

let restrictedDates = JSON.parse(component.get('v.restrictedDates'));

Which one you pick is up to you.

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