CODEWITHSUNDEEP
jqueryjquery-ui-datepicker
Manlio
Manlio

Reputation: 121

jquery datepicker: validate date

i have set a jquery class:

$(function() {
            $( ".datepickerIT" ).datepicker({
                showOtherMonths: true,
                selectOtherMonths: true,
                showAnim: "clip",
                dateFormat: "dd/mm/yy",
                minDate: "01/01/1925",
                maxDate: "31/12/2050",
                changeMonth: true,
                changeYear: true,
                yearRange: "1925:2050",
                regional: "it"                      
            });
        });

I want to add a date check control that alert if user input not is a valid date

How can add to the class ".datepickerIT" a check like this?

onClose: function(dateText, inst) {
        try {
            $.datepicker.parseDate('dd/mm/yy', dateText);
        } catch (e) {
            alert(e);
        };

And what plugin i must include into head section?

Upvotes: 12

Views: 68276

Answers (4)

Gaurav Kalyan
Gaurav Kalyan

Reputation: 1897

You can validate the date in following ways (you don't need a plugin for it):-

$(document).ready(function(){
    $("#datepicker").datepicker();
    $("#datepicker").blur(function(){
        val = $(this).val();
        val1 = Date.parse(val);
        if (isNaN(val1)==true && val!==''){
           alert("error")
        }
        else{
           console.log(val1);
        }
    });
});

Working fiddle

UPDATE: Correct approach is mentioned by @Razan Paul

Upvotes: 8

Y.B.
Y.B.

Reputation: 3586

Date.parse() does not support dd/mm/yyyy and datepicker getDate sets date to current on any parse error hence this bespoke check using new Date(yyyy, mm, dd) to verify date parts are consistent after conversion:

$(function() {
    $(".datepickerIT")
        .datepicker({
            showOtherMonths: true,
            selectOtherMonths: true,
            showAnim: "clip",
            dateFormat: "dd/mm/yy",
            minDate: "01/01/1925",
            maxDate: "31/12/2050",
            changeMonth: true,
            changeYear: true,
            yearRange: "1925:2050",
            regional: "it"                      
        })
        .on('blur', function() { // This check is for dd/mm/yyyy format but can be easily adapted to any other
            if(this.value.match(/\d{1,2}[^\d]\d{1,2}[^\d]\d{4,4}/gi) == null)
                alert('Invalid date format');
            else {
                var t = this.value.split(/[^\d]/);
                var dd = parseInt(t[0], 10);
                var m0 = parseInt(t[1], 10) - 1; // Month in JavaScript Date object is 0-based
                var yyyy = parseInt(t[2], 10);
                var d = new Date(yyyy, m0, dd); // new Date(2017, 13, 32) is still valid
                if(d.getDate() != dd || d.getMonth() != m0 || d.getFullYear() != yyyy)
                    alert('Invalid date value');
            }
        });
});

Upvotes: 5

Razan Paul
Razan Paul

Reputation: 13838

Date.parse is not recommend to use as there are still many differences in how different hosts parse date strings. [1][2]

I would use moment for date validation.

moment(newDate, 'DD/MM/YYYY', true).isValid()

jsfiddle: http://jsfiddle.net/dw8xyzd4/

[1] https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/parse [2] Why does Date.parse give incorrect results?

Upvotes: 11

Anuj Dubey
Anuj Dubey

Reputation: 41

$(document).ready(function(){

//  Check in date 
    $("#in" ).datepick({
        dateFormat: "mm/dd/yy",
        minDate:"0+1",
        maxDate: "2years",
        changeMonth:true, 
        changeYear:true,    
        onSelect:function(date_text,inst){
            var from = new Date(date_text);
            $( "#out" ).datepicker( "option", "minDate",from);
        }       


    });

//  Check out date  



});

Note:-Here in is your field name and datepick is your plugin name.

Upvotes: -1

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