Calendar - Documentation | www.HtmlElements.com

Overview

Smart.Calendar represents a Calendar by displaying the days of a month of a given year.

Getting Started

Getting Started with Calendar Web Component

Smart UI for Web Components is distributed as smart-webcomponents NPM package. You can also get the full download from our website with all demos from the Download page.

Setup the Calendar

Smart UI for Web Components is distributed as smart-webcomponents NPM package

  1. Download and install the package.

    npm install smart-webcomponents

  2. Once installed, import the Calendar module in your application.

    <script type="module" src="node_modules/smart-webcomponents/source/modules/smart.calendar.js"></script>

  3. Adding CSS reference

    The smart.default.css CSS file should be referenced using following code.

    <link rel="stylesheet" type="text/css" href="node_modules/smart-webcomponents/source/styles/smart.default.css" />

  4. Add the Calendar tag to your Web Page

    <smart-calendar id="calendar"></smart-calendar>

  5. Create the Calendar Component

    	<script type="module">
		Smart('#calendar', class {
			get properties() {
				return {"selectedDates":["2020-7-2","2020-7-17"]}
			}
		});
	</script>

    Another option is to create the Calendar is by using the traditional Javascript way:
    	const calendar = document.createElement('smart-calendar');

	calendar.disabled = true;
	document.body.appendChild(calendar);

    Smart framework provides a way to dynamically create a web component on demand from a DIV tag which is used as a host. The following imports the web component's module and creates it on demand, when the document is ready. The #calendar is the ID of a DIV tag.

    	import "../../source/modules/smart.calendar.js";

	document.readyState === 'complete' ? init() : window.onload = init;

	function init() { 
		const calendar = new Smart.Calendar('#calendar', {"selectedDates":["2020-7-2","2020-7-17"]});
	}

  6. Open the page in your web server.

selectedDates property determines the selected dates of the Calendar. It represents an array of Date objects but the user can pass in an array of strings representing valid dates as well:

<!DOCTYPE html>
<html>
<head>
 <link rel="stylesheet" href=../../source/styles/smart.default.css" type="text/css" />
</head>
<body>
 <smart-calendar selected-dates='["2017-12-24", "2017-12-25", "2017-12-26"]'></smart-calendar>
 <script type="module" src="../../source/modules/smart.calendar.js"></script>
</body>
</html>

Demo

The user can also select new dates using javascript:

<!DOCTYPE html>
<html>
<head>
 <link rel="stylesheet" href=../../source/styles/smart.default.css" type="text/css" />
 <script>
     window.onload = function () {
        document.querySelector('smart-calendar').selectedDates = ["2018-1-1", new Date(2018,0,2)];
     }
 </script>
</head>
<body>
 <smart-calendar></smart-calendar>
 <script type="module" src="../../source/modules/smart.calendar.js"></script>
</body>
</html>

Demo

Notice how the array can contain valid dates as string and javascript Date objects at the same time.

Appearance

Smart.Calendar offers two different views - landscape and portrait:

<smart-calendar view="portrait"></smart-calendar>

Different sections of the calendar can be hidden or shown depending on the viewSection property:

<smart-calendar view-sections='["title", "header"]'></smart-calendar>

The element has three sections: title, header and footer. By default the footer is hidden and empty. Users can change the content of the three sections using HTML Template elements. This can be accomplished in the following way:

<!DOCTYPE html>
<html>
<head>
 <link rel="stylesheet" href=../../source/styles/smart.default.css" type="text/css" />
</head>
<body>
 <template id="titleTemplate">
     <div>Selected date: {{date}}</div>
 </template>
 <template id="headerTemplate">
     <div>Month:</div>
     <div>{{date}}</div>
 </template>
 <template id="footerTemplate">
     <div>Footer text</div>
 </template>
 <smart-calendar view-sections='["title","header","footer"]' title-template="titleTemplate" header-template="headerTemplate" 
 footer-template="footerTemplate"></smart-calendar>
 <script type="module" src="../../source/modules/smart.calendar.js"></script>
</body>
</html>

The bindings in the templates are not necessary. They can be removed and the template can contain any arbitrary HTML.


The tooltips for the important dates of the Calendar can also be modified using HTML Templates in a similar fashion:

<!DOCTYPE html>
<html>
<head>
 <link rel="stylesheet" href=../../source/styles/smart.default.css" type="text/css" />
</head>
<body>
 <template id="tooltipTemplate">
    <div>Michael's Birthday {{date}}</div>
 </template>
 <smart-calendar view-sections='["header"]' tooltip tooltip-template="tooltipTemplate" important-dates='["2018-02-18", "2018-02-1"]'></smart-calendar>
 <script type="module" src="../../source/modules/smart.calendar.js"></script>
</body>
</html>

Demo

If the template contains a binding it will be replaced with the appropriate date string.


Month names are shown when more than one month is visible. The number of months is contorlled by the months property. The value can vary from 1 to 12. When applying a different number the user has to set the appropriate size of the calendar for the months to be visualized properly.

<!DOCTYPE html>
<html>
<head>
 <link rel="stylesheet" href=../../source/styles/smart.default.css" type="text/css" />
 <script>
     window.onload = function () {
         document.querySelector('smart-calendar').dateFormatFunction = function (date) {
            return date.getMonth() + ' - ' + date.getFullYear();
         }
     }
 </script>
 <style>
     smart-calendar {
         width: 500px;
         height: 650px;
         font-size: 150%;
     }
 </style>
</head>
<body>
 <smart-calendar months="6"></smart-calendar>
 <script type="module" src="../../source/modules/smart.calendar.js"></script>
</body>
</html>

The calendar offers a date format function that allows the user to customize the format of the month names. The property is called dateFormatFunction. It represents a format function and accepts a single argument, a javascript Date object and expects a string to be returned. Here's an example usage:

Demo

Behavior

By default the Calendar allows single date selection using mouse interaction and multiple date selection using keyboard key combinatons.

  • Pressing Shift + Arrow Left/Right/Top/Bottom or Shift + mouse click on a date will select the dates from the first to the current selection.
  • Pressing Ctrl + Arrow Left/Right/Top/Bottom or Ctrl + mouse click on a date will select the current date by preserving the previous selection.

Smart.Calendar has the a variaty of selection modes:

  • none - no selection allowed
  • default - single date selection using keyboard and mouse interaction, multiple date selection using specific keyboard keys.
  • one - single date selection
  • many - multiple date selection using mouse interaction.
  • zeroOrMany - multiple item selection
  • oneOrMany - multiple item selection. Doesn't allow empty selection.
  • zeroOrOne - single item selection. Allows empty selection.

Selection modes can be changed using the selectionMode property through javascript or during initialization of the elemnet in the HTML:

<smart-calendar selection-mode="zeroOrOne"></smart-calendar>

Demo


Smart.Calendar can operate in two modes: classic or default. The calendarMode property determines that behavior.

Classic mode offers month and year navigation trough the header of the element.

Default mode allows month and year navigation through separate panels that can be accessed by clicking on the month name, located in the header.

<smart-calendar calendar-mode="classic"></smart-calendar>

Demo

Create, Append, Remove, Get/Set Property, Invoke Method, Bind to Event


Create a new element:
	const calendar = document.createElement('smart-calendar');

Append it to the DOM: 
	document.body.appendChild(calendar);

Remove it from the DOM: 
	calendar.parentNode.removeChild(calendar);

Set a property: 
	calendar.propertyName = propertyValue;

Get a property value: 
	const propertyValue = calendar.propertyName;

Invoke a method: 
	calendar.methodName(argument1, argument2);

Add Event Listener: 
	const eventHandler = (event) => {
	   // your code here.
	};

	calendar.addEventListener(eventName, eventHandler);

Remove Event Listener: 
	calendar.removeEventListener(eventName, eventHandler, true);

Using with Typescript

Smart Web Components package includes TypeScript definitions which enables strongly-typed access to the Smart UI Components and their configuration.

Inside the download package, the typescript directory contains .d.ts file for each web component and a smart.elements.d.ts typescript definitions file for all web components. Copy the typescript definitions file to your project and in your TypeScript file add a reference to smart.elements.d.ts

Read more about using Smart UI with Typescript.

Getting Started with Angular Calendar Component

Setup Angular Environment

Angular provides the easiest way to set angular CLI projects using Angular CLI tool.

Install the CLI application globally to your machine. 

npm install -g @angular/cli

Create a new Application

ng new smart-angular-calendar

Navigate to the created project folder 

cd smart-angular-calendar

Setup the Calendar

Smart UI for Angular is distributed as smart-webcomponents-angular NPM package

  1. Download and install the package.
    npm install smart-webcomponents-angular
  2. Adding CSS reference

    The following CSS file is available in ../node_modules/smart-webcomponents-angular/ package folder. This can be referenced in [src/styles.css] using following code. 

    @import 'smart-webcomponents-angular/source/styles/smart.default.css';

    Another way to achieve the same is to edit the angular.json file and in the styles add the style. 

    "styles": [
		"node_modules/smart-webcomponents-angular/source/styles/smart.default.css"
	]
    If you want to use Bootstrap, Fluent or other themes available in the package, you need to add them after 'smart.default.css'.
  3. Example with Angular Standalone Components


    app.component.html

     <div class="smart-demo-container">
    <div id="materialPicker">
        <section>
            <h2>Smart.Calendar</h2>
            <div>
                <h2>Allow users to enter dates easily and visually. You can customize date formats, language, layout,
                    animations, selection modes and much more with the smartCalendar.</h2>
                <div class="module"></div>
            </div>
        </section>
        <section id="datePickers">
            <h2>Date pickers</h2>
            <div class="module">
                <p>The selected day is indicated by a filled circle. The current day is indicated
                    by a different color and type weight.</p>
                <p>Swipe left to right to navigate through the months. Touch the year in
                    the title bar to transition to the year view.</p>
            </div>
            <div class="module">
                <div>
                    <smart-calendar #calendar selection-mode="one" view="portrait" hide-other-month-days
                        [viewSections]='["title", "header", "footer"]' displayModeView="list"
                        footerTemplate="templateWithButtons"></smart-calendar>
                </div>
                <br />
                <p>Date and year picker: portrait, month display mode</p>
            </div>
            <div class="module">
                <div>
                    <smart-calendar #calendar2 selection-mode="one" view="portrait" hide-other-month-days
                        [viewSections]='["title", "header", "footer"]' displayModeView="list" displayMode="decade"
                        footerTemplate="templateWithButtons"></smart-calendar>
                </div>
                <br />
                <p>Date and year picker:portrait, decade display mode.</p>
            </div>
            <div class="module">
                <p>The picker has a landscape view as well to suite the different screen
                    orientations.</p>
            </div>
            <div class="module">
                <smart-calendar #calendar3 selection-mode="one" view="landscape" hide-other-month-days
                    [viewSections]='["title", "header", "footer"]' displayModeView="list"
                    footerTemplate="templateWithButtons"></smart-calendar>
                <br />
                <p>Date picker: landscape, month display mode</p>
            </div>
            <div class="module">
                <smart-calendar #calendar4 selection-mode="one" view="landscape" hide-other-month-days
                    [viewSections]='["title", "header", "footer"]' displayModeView="list" displayMode="decade"
                    footerTemplate="templateWithButtons"></smart-calendar>
                <br />
                <p>Date picker: landscape, decade display mode.</p>
            </div>
        </section>
    </div>

    app.component.ts

     import { Component, ViewChild, OnInit, AfterViewInit } from '@angular/core';
import { ButtonComponent } from 'smart-webcomponents-angular/button';
import { CalendarComponent } from 'smart-webcomponents-angular/calendar';


import { CommonModule } from '@angular/common';
import { RouterOutlet } from '@angular/router';
import { CalendarModule } from 'smart-webcomponents-angular/calendar';

@Component({
	selector: 'app-root',
	standalone: true,
	imports: [CommonModule, CalendarModule, RouterOutlet],
	templateUrl: './app.component.html',
	styleUrls: ['./app.component.css']
})

export class AppComponent implements AfterViewInit, OnInit {
	@ViewChild('calendar', { read: CalendarComponent, static: false }) calendar!: CalendarComponent;
	@ViewChild('calendar2', { read: CalendarComponent, static: false }) calendar2!: CalendarComponent;
	@ViewChild('calendar3', { read: CalendarComponent, static: false }) calendar3!: CalendarComponent;
	@ViewChild('calendar4', { read: CalendarComponent, static: false }) calendar4!: CalendarComponent;


	ngOnInit(): void {
		// onInit code.
	}

	ngAfterViewInit(): void {
		// afterViewInit code.
		this.init();
	}

	init(): void {
		// init code.

		// Your code here.

	}
}

  4. Example with Angular NGModule


    app.component.html

     <div class="smart-demo-container">
    <div id="materialPicker">
        <section>
            <h2>Smart.Calendar</h2>
            <div>
                <h2>Allow users to enter dates easily and visually. You can customize date formats, language, layout,
                    animations, selection modes and much more with the smartCalendar.</h2>
                <div class="module"></div>
            </div>
        </section>
        <section id="datePickers">
            <h2>Date pickers</h2>
            <div class="module">
                <p>The selected day is indicated by a filled circle. The current day is indicated
                    by a different color and type weight.</p>
                <p>Swipe left to right to navigate through the months. Touch the year in
                    the title bar to transition to the year view.</p>
            </div>
            <div class="module">
                <div>
                    <smart-calendar #calendar selection-mode="one" view="portrait" hide-other-month-days
                        [viewSections]='["title", "header", "footer"]' displayModeView="list"
                        footerTemplate="templateWithButtons"></smart-calendar>
                </div>
                <br />
                <p>Date and year picker: portrait, month display mode</p>
            </div>
            <div class="module">
                <div>
                    <smart-calendar #calendar2 selection-mode="one" view="portrait" hide-other-month-days
                        [viewSections]='["title", "header", "footer"]' displayModeView="list" displayMode="decade"
                        footerTemplate="templateWithButtons"></smart-calendar>
                </div>
                <br />
                <p>Date and year picker:portrait, decade display mode.</p>
            </div>
            <div class="module">
                <p>The picker has a landscape view as well to suite the different screen
                    orientations.</p>
            </div>
            <div class="module">
                <smart-calendar #calendar3 selection-mode="one" view="landscape" hide-other-month-days
                    [viewSections]='["title", "header", "footer"]' displayModeView="list"
                    footerTemplate="templateWithButtons"></smart-calendar>
                <br />
                <p>Date picker: landscape, month display mode</p>
            </div>
            <div class="module">
                <smart-calendar #calendar4 selection-mode="one" view="landscape" hide-other-month-days
                    [viewSections]='["title", "header", "footer"]' displayModeView="list" displayMode="decade"
                    footerTemplate="templateWithButtons"></smart-calendar>
                <br />
                <p>Date picker: landscape, decade display mode.</p>
            </div>
        </section>
    </div>

    app.component.ts

     import { Component, ViewChild, OnInit, AfterViewInit } from '@angular/core';
import { ButtonComponent } from 'smart-webcomponents-angular/button';
import { CalendarComponent } from 'smart-webcomponents-angular/calendar';


@Component({
	selector: 'app-root',
	templateUrl: './app.component.html',
	styleUrls: ['./app.component.css']
})

export class AppComponent implements AfterViewInit, OnInit {
	@ViewChild('calendar', { read: CalendarComponent, static: false }) calendar!: CalendarComponent;
	@ViewChild('calendar2', { read: CalendarComponent, static: false }) calendar2!: CalendarComponent;
	@ViewChild('calendar3', { read: CalendarComponent, static: false }) calendar3!: CalendarComponent;
	@ViewChild('calendar4', { read: CalendarComponent, static: false }) calendar4!: CalendarComponent;


	ngOnInit(): void {
		// onInit code.
	}

	ngAfterViewInit(): void {
		// afterViewInit code.
		this.init();
	}

	init(): void {
		// init code.

		// Your code here.

	}
}

    app.module.ts

     import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';

import { ButtonModule } from 'smart-webcomponents-angular/button';import { CalendarModule } from 'smart-webcomponents-angular/calendar';

import { AppComponent } from './app.component';

@NgModule({
    declarations: [ AppComponent ],
    imports: [ BrowserModule, ButtonModule, CalendarModule ],
    bootstrap: [ AppComponent ]
})

export class AppModule { }


Running the Angular application

After completing the steps required to render a Calendar, run the following command to display the output in your web browser

ng serve
and open localhost:4200 in your favorite web browser.

Read more about using Smart UI for Angular: https://www.htmlelements.com/docs/angular-cli/.

Getting Started with React Calendar Component

Setup React Environment

The easiest way to start with React is to use NextJS Next.js is a full-stack React framework. It’s versatile and lets you create React apps of any size—from a mostly static blog to a complex dynamic application.

npx create-next-app my-app
cd my-app
npm run dev
or 
yarn create next-app my-app
cd my-app
yarn run dev

Preparation

Setup the Calendar

Smart UI for React is distributed as smart-webcomponents-react package

  1. Download and install the package.

    In your React Next.js project, run one of the following commands to install Smart UI Calendar for React

    With NPM: 

    npm install smart-webcomponents-react
    With Yarn: 
    yarn add smart-webcomponents-react

  2. Once installed, import the React Calendar Component and CSS files in your application and render it. app.js

    import 'smart-webcomponents-react/source/styles/smart.default.css';
import React from "react";
import ReactDOM from 'react-dom/client';
import { Button, RepeatButton, ToggleButton, PowerButton } from 'smart-webcomponents-react/button';
import { Calendar } from 'smart-webcomponents-react/calendar';

const App = () => {
	return (
		<div className="smart-demo-container">
			<template id="templateWithButtons">
				<Button  className="material flat">CANCEL</Button>
				<Button  className="material flat">OK</Button>
			</template>
			<div id="materialPicker">
				<section>
					<h2>smartCalendar</h2>
					<div>
						<h2>Allow users to enter dates easily and visually. You can customize date formats, language, layout, animations, selection modes and much more with the smartCalendar.</h2>
						<div className="module"></div>
					</div>
				</section>
				<section id="datePickers">
					<h2>Date pickers</h2>
					<div className="module">
						<p>The selected day is indicated by a filled circle. The current day is indicated
								by a different color and type weight.</p>
						<p>Swipe left to right to navigate through the months. Touch the year in
								the title bar to transition to the year view.</p>
					</div>
					<div className="module">
						<div>
							<Calendar  selectionMode="one" view="portrait" hideOtherMonthDays
								viewSections={["title", "header", "footer"]} displayModeView="list"
								footerTemplate="templateWithButtons"></Calendar>
						</div>
						<br />
						<p>Date and year picker: portrait, month display mode</p>
					</div>
					<div className="module">
						<div>
							<Calendar  selectionMode="one" view="portrait" hideOtherMonthDays
								viewSections={["title", "header", "footer"]} displayModeView="list"
								displayMode="decade" footerTemplate="templateWithButtons"></Calendar>
						</div>
						<br />
						<p>Date and year picker:portrait, decade display mode.</p>
					</div>
					<div className="module">
						<p>The picker has a landscape view as well to suite the different screen
								orientations.</p>
					</div>
					<div className="module">
						<Calendar  selectionMode="one" view="landscape" hideOtherMonthDays
							viewSections={["title", "header", "footer"]} displayModeView="list"
							footerTemplate="templateWithButtons"></Calendar>
						<br />
						<p>Date picker: landscape, month display mode</p>
					</div>
					<div className="module">
						<Calendar  selectionMode="one" view="landscape" hideOtherMonthDays
							viewSections={["title", "header", "footer"]} displayModeView="list"
							displayMode="decade" footerTemplate="templateWithButtons"></Calendar>
						<br />
						<p>Date picker: landscape, decade display mode.</p>
					</div>
				</section>
			</div>
		</div>
	);
}



export default App;

Running the React application

Start the app with 
npm run dev
or 
yarn run dev
and open localhost:3000 in your favorite web browser to see the output.

Setup with Vite

Vite (French word for "quick", pronounced /vit/, like "veet") is a build tool that aims to provide a faster and leaner development experience for modern web projects
With NPM: 
npm create vite@latest
With Yarn: 
yarn create vite
Then follow the prompts and choose React as a project.

Navigate to your project's directory. By default it is 'vite-project' and install Smart UI for React

In your Vite project, run one of the following commands to install Smart UI Calendar for React

With NPM: 

npm install smart-webcomponents-react
With Yarn: 
yarn add smart-webcomponents-react

Open src/App.tsx App.tsx

import 'smart-webcomponents-react/source/styles/smart.default.css';
import React from "react";
import ReactDOM from 'react-dom/client';
import { Button, RepeatButton, ToggleButton, PowerButton } from 'smart-webcomponents-react/button';
import { Calendar } from 'smart-webcomponents-react/calendar';

const App = () => {
	return (
		<div className="smart-demo-container">
			<template id="templateWithButtons">
				<Button  className="material flat">CANCEL</Button>
				<Button  className="material flat">OK</Button>
			</template>
			<div id="materialPicker">
				<section>
					<h2>smartCalendar</h2>
					<div>
						<h2>Allow users to enter dates easily and visually. You can customize date formats, language, layout, animations, selection modes and much more with the smartCalendar.</h2>
						<div className="module"></div>
					</div>
				</section>
				<section id="datePickers">
					<h2>Date pickers</h2>
					<div className="module">
						<p>The selected day is indicated by a filled circle. The current day is indicated
								by a different color and type weight.</p>
						<p>Swipe left to right to navigate through the months. Touch the year in
								the title bar to transition to the year view.</p>
					</div>
					<div className="module">
						<div>
							<Calendar  selectionMode="one" view="portrait" hideOtherMonthDays
								viewSections={["title", "header", "footer"]} displayModeView="list"
								footerTemplate="templateWithButtons"></Calendar>
						</div>
						<br />
						<p>Date and year picker: portrait, month display mode</p>
					</div>
					<div className="module">
						<div>
							<Calendar  selectionMode="one" view="portrait" hideOtherMonthDays
								viewSections={["title", "header", "footer"]} displayModeView="list"
								displayMode="decade" footerTemplate="templateWithButtons"></Calendar>
						</div>
						<br />
						<p>Date and year picker:portrait, decade display mode.</p>
					</div>
					<div className="module">
						<p>The picker has a landscape view as well to suite the different screen
								orientations.</p>
					</div>
					<div className="module">
						<Calendar  selectionMode="one" view="landscape" hideOtherMonthDays
							viewSections={["title", "header", "footer"]} displayModeView="list"
							footerTemplate="templateWithButtons"></Calendar>
						<br />
						<p>Date picker: landscape, month display mode</p>
					</div>
					<div className="module">
						<Calendar  selectionMode="one" view="landscape" hideOtherMonthDays
							viewSections={["title", "header", "footer"]} displayModeView="list"
							displayMode="decade" footerTemplate="templateWithButtons"></Calendar>
						<br />
						<p>Date picker: landscape, decade display mode.</p>
					</div>
				</section>
			</div>
		</div>
	);
}



export default App;

Read more about using Smart UI for React: https://www.htmlelements.com/docs/react/.

Getting Started with Vue Calendar Component


Setup Vue with Vite

In this section we will introduce how to scaffold a Vue Single Page Application on your local machine. The created project will be using a build setup based on Vite and allow us to use Vue Single-File Components (SFCs). Run the following command in your command line 
npm create vue@latest
This command will install and execute create-vue, the official Vue project scaffolding tool. You will be presented with prompts for several optional features such as TypeScript and testing support: 
✔ Project name: … 
✔ Add TypeScript? … No / Yes
✔ Add JSX Support? … No / Yes
✔ Add Vue Router for Single Page Application development? … No / Yes
✔ Add Pinia for state management? … No / Yes
✔ Add Vitest for Unit testing? … No / Yes
✔ Add an End-to-End Testing Solution? … No / Cypress / Playwright
✔ Add ESLint for code quality? … No / Yes
✔ Add Prettier for code formatting? … No / Yes

Scaffolding project in ./...
Done.
If you are unsure about an option, simply choose No by hitting enter for now. Once the project is created, follow the instructions to install dependencies and start the dev server: 
cd 
npm install
npm install smart-webcomponents
npm run dev

  • Make Vue ignore custom elements defined outside of Vue (e.g., using the Web Components APIs). Otherwise, it will throw a warning about an Unknown custom element, assuming that you forgot to register a global component or misspelled a component name.

    Open vite.config.js in your favorite text editor and change its contents to the following:

    vite.config.js

    import { fileURLToPath, URL } from 'node:url'

import { defineConfig } from 'vite'
import vue from '@vitejs/plugin-vue'

// https://vitejs.dev/config/
export default defineConfig({
  plugins: [
    vue({
      template: {
        compilerOptions: {
          isCustomElement: tag => tag.startsWith('smart-')
        }
      }
    })
  ],
  resolve: {
    alias: {
      '@': fileURLToPath(new URL('./src', import.meta.url))
    }
  }
})
  • Open src/App.vue in your favorite text editor and change its contents to the following:

    App.vue 

    <template>
  <div class="vue-root">
    <smart-calendar id="calendar"></smart-calendar>
    <div class="options">
      <div class="caption">Events</div>
      <div class="option" id="log"></div>
    </div>
  </div>
</template>

<script>
import { onMounted } from "vue";
import "smart-webcomponents/source/styles/smart.default.css";
import "smart-webcomponents/source/modules/smart.calendar.js";

export default {
  name: "app",
  setup() {
    onMounted(() => {
      const calendar = document.querySelector("smart-calendar");
      calendar.addEventListener("change", function(event) {
        document.getElementById(
          "log"
        ).innerHTML = event.detail.value.toString();
      });
    });
  }
};
</script>

<style>
</style>
    We can now use the smart-calendar with Vue 3. Data binding and event handlers will just work right out of the box.

Running the Vue application

Start the app with 
npm run dev
and open http://localhost:5173/ in your favorite web browser to see the output below:
When you are ready to ship your app to production, run the following: 
npm run build
This will create a production-ready build of your app in the project's ./dist directory.

Read more about using Smart UI for Vue: https://www.htmlelements.com/docs/vue/.