I'm trying to create a javascript date object in the focus.add_days function to add some days to the given date in a element. the problem is that the javascript object doesn't expect a string "Ymd" so how can I create the date object without parsing the string "Ymd" into pieces, or is the only way?
trigger = {
fecha_ini: function(){
$('input[name="fecha_ini"]').on('change',function(){
console.log('hi');
var fecha_fin = $(':input [name=fecha_fin]');
var min = $(this).val();
//here is where i pass the "Y-m-d" string as the date argument
var max = fechas.add_days(min,31*4);
fecha_fin.attr('min',min);
fecha_fin.attr('max',max);
fecha_fin.val('');
})
}
};
fechas = {
add_days: function addDays(date, days) {
//here is where i use the string "Y-m-d" to create the date object, but obviusly doesnt work
var result = new Date(date);
result.setDate(date.getDate() + days);
return result;
}
};
trigger.fecha_ini();
Use valueAsDate
:
valueAsDate
Returns:Date
Returns / Sets the value of the element, interpreted as a date, ornull
if conversion is not possible.
Demo:
<input type="date" id="d" value="2018-02-14"> <button onclick="console.log( document.getElementById('d').valueAsDate )"> change the date (or not) and click me </button>
how can I create the date object without parsing the string "Ymd" into pieces, or is the only way?
While Date.parse will convert strings in y/m/d/ format to date objects, manual parsing is the only sensible way:
// s is format y-m-d
// Returns a date object for 00:00:00 local time
// on the specified date
function parseDate(s) {
var b = s.split(/\D/);
return new Date(b[0], --b[1], b[2]);
}
ES5 specifies a form of ISO 8601 that should be supported by all browsers, however it is not supported consistently or by all browsers in use.
With me it's working without doing anything.
I just write new Date($('#html5dateinput').val());
that's about it. I get the correct date object. I'm using Google Chrome ver 38 and I tested it on Firefox 33 under Ubuntu 14.04
javascript Date
object parses the raw value of <input type=date>
in the UTC time zone, always!
new Date(input.value) // Date object, date interpreted as UTC but printed in the local TZ
Date.parse(input.value) // Unix time in ms, date interpreted as UTC
If the value of the <input type=date>
is meant to be interpreted in the local timezone , then you can force it by adding a time like this:
new Date(input.value+"T00:00") // Date object, date interpreted and printed in the local TZ
Date.parse(input.value+"T00:00") // Unix time in ms, date interpreted as local TZ
emphasis mine
For example, "
2011-10-10
" (date-only form), "2011-10-10T14:48:00
" (date-time form), or "2011-10-10T14:48:00.000+09:00
" (date-time form with milliseconds and time zone) can be passed and will be parsed. When the time zone offset is absent, date-only forms are interpreted as a UTC time and date-time forms are interpreted as local time.
var myDate = new Date(input.valueAsNumber);
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