Clicking on a date in the datepicker does not trigger the JS change event in t1m0n Air Datepicker

Explanation of the problem

An issue has been observed where an input element’s onchange event, which is being watched by some JavaScript code, is not getting triggered when a date is selected from a datepicker. This issue is likely related to the fact that the input value is being changed programmatically, rather than by user input.

$('input').on('change', function() {
    console.log('Input value changed.');
});

As shown in the example above, the change event is bound to the input element, but when a date is picked from the datepicker, it does not fire the event. This is because the val() method does not trigger the change event when the value of the input element is changed programmatically.

This issue is related to the following problem: http://stackoverflow.com/questions/3179385/val-doesnt-trigger-change-in-jquery.

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Problem solution for Clicking on a date in the datepicker does not trigger the JS change event in t1m0n Air Datepicker

$('.air-datepicker').datepicker({
    onSelect: function(formattedDate, date, inst) {
        $(inst.el).trigger('change');
    }
});

In this example, the datepicker is initialized by calling the datepicker() method on the element with the class ‘air-datepicker’. The onSelect event is passed as an option, and it takes a function that receives three arguments: formattedDate, date and inst. The first argument is a string that represents the selected date in the format specified by the format option. The second argument is a JavaScript Date object that represents the selected date. The third argument is an object that represents the datepicker instance. In this function, the trigger method is used to manually trigger the change event on the input element.

It’s important to note that the onSelect event is only available for certain datepicker libraries, like the one in the example, the air-datepicker. If you are using a different datepicker library you should check if it has an equivalent event and how to use it. Also, this is a temporary fix, it’s better to wait for the feature request to be implemented, if you are the developer, or contact the developer if you are a user.

Other popular problems with Air Datepicker

<!--example of using 'no-wrap' option-->
<div class="form-group">
    <input type="text" class="form-control datepicker" data-wrap="false">
</div>

Problem: Datepicker not working with Angular

Another common issue that users have reported when using the t1m0n Air Datepicker with Angular is that the datepicker is not working properly. This can happen because Angular uses a different approach to handling events and data binding, which can cause conflicts with the datepicker’s event handling.

Solution:

To solve this problem, you can use the Angular wrapper for the t1m0n Air Datepicker, which is specifically designed to work with Angular.

//example of using the Angular wrapper
import { Component } from '@angular/core';
import { AirDatepicker } from 'ng-air-datepicker';

@Component({
    selector: 'my-app',
    template: `<air-datepicker [(ngModel)]="date"></air-datepicker>`
})
export class AppComponent {
    date = new Date();
}

Problem: Datepicker not working with Typescript

Another common issue that users have reported when using the t1m0n Air Datepicker with Typescript is that the datepicker is not working properly. This can happen because Typescript is a strict superset of JavaScript and requires explicit types for variables and function arguments, which can cause conflicts with the datepicker’s dynamic nature.

Solution:

To solve this problem, you can use the @types/air-datepicker package, which provides type definitions for the t1m0n Air Datepicker. This package allows you to use the datepicker with Typescript without any type errors.

//example of using @types/air-datepicker package
import { AirDatepicker } from 'air-datepicker';

class MyComponent {
    private datepicker: AirDatepicker;

    constructor() {
        this.datepicker = new AirDatepicker();
    }
}

In this example, the AirDatepicker is imported from the air-datepicker package and a private variable datepicker is defined with the type of AirDatepicker. This allows for the datepicker to work correctly in a Typescript environment without any type errors.

In summary, the first problem is solved by using the datepicker’s ‘no-wrap’ option, which prevents the datepicker from being wrapped in a Bootstrap 4 container. The second problem is solved by using the Angular wrapper for the t1m0n Air Datepicker, which is specifically designed to work with Angular. The third problem is solved by using the @types/air-datepicker package, which provides type definitions for the t1m0n Air Datepicker and allows you to use the datepicker with Typescript without any type errors. These solutions allow developers to effectively use t1m0n Air Datepicker in different environments without any compatibility issues.

A brief introduction to Air Datepicker

t1m0n Air Datepicker is a lightweight and highly customizable JavaScript datepicker library. It is based on the jQuery library, which makes it easy to use and integrates seamlessly with other jQuery-based libraries and frameworks. It provides a wide range of options and features such as date format, range selection, localization, and custom templates, which allows developers to easily customize the datepicker to their specific needs.

In terms of functionality, t1m0n Air Datepicker provides a range of features such as date validation, date formatting, and date range selection. It also supports various date formats, including date, time, and datetime, and it is also localized which means it can be used with different languages, calendars and date formats. The library also has the ability to work with different timezones and it supports both input fields and inline calendars. It also provides a range of events and callbacks which can be used to handle user interactions such as selecting a date, changing the view, etc.

Most popular use cases for Air Datepicker

<input type="text" class="form-control datepicker">
<script>
    $('.datepicker').datepicker({
        minDate: new Date(),
        onSelect: function(formattedDate, date, inst) {
            console.log(formattedDate, date, inst);
        }
    });
</script>