Full featured and lightweight calendar in the browser

import { Kalendar } from 'kalendar-vue';
import 'kalendar-vue/dist/kalendar-vue.css';
...
components: {
	Kalendar,
	...
},

<template>
	<kalendar :configuration="calendar_settings" :appointments="appointments"/>
</template>
<script>
	...
	data: () => ({
		appointments: [],
		calendar_settings: {
			style: 'material_design', // ['flat_design', 'material_design']
			view_type: 'Month', // ['Month', 'Day']
			split_value: 20, // Value % 60 === 0
			cell_height: 20, // !isNaN(Value)
			scrollToNow: true, // Boolean
			current_day: new Date(), // Valid date
		},
		...
	})
</script>

<kalendar :configuration="calendar_settings" :appointments="appointments" class="generate-shadow">
	<div slot="creating-card" slot-scope="{appointment_props}">
		<!-- This is the card that is displayed while the user is dragging mouse on cells -->
		<!-- You can access various attributes of that selection using the slot scope appointment_props. It contains fields like: start_value, end_value and status. -->
		<h4 class="appointment-title" style="text-align: left;">New Appointment</h4>
		<span class="time">{{appointment_props.start_value.value}} - {{appointment_props.end_value.value}}
		</span>
	</div>
	<div slot="popup-form" slot-scope="{popup_scope}" style="display: flex; flex-direction: column;">
		<!-- This is the popup that is displayed when user has finished dragging(selecting) appointment start and end values. -->
		<!-- You can use the popup_scope variable to access various fields, such as: appointment_data (similar to appointment_props) and close. -->
		<!-- There is a listener attached to the close field. Whenever it gets a false value, the popup closes. -->
		<!-- You can add as many fields as you want. When saving them, make sure to insert them in the data field of the payload for appointments array. In that way you can access them even in the *details-card* slot.-->
		<h4 style="margin-bottom: 10px">New Appointment</h4>
		<input v-model="new_appointment['title']" type="text" name="title" placeholder="Title">
		<textarea v-model="new_appointment['description']" type="text" name="description" placeholder="Description" rows="2"></textarea>
		<div class="buttons">
			<button class="cancel" @click="popup_scope.close_popup = true">Cancel</button>
			<button @click="completeAppointment(popup_scope, new_appointment)">Save</button>
		</div>
	</div>
	<div slot="details-card" slot-scope="{appointment_props}">
		<!-- Similar to creating-card, except that this one is displayed for existing appointments. -->
		<!-- Here you can access the data object, aswell as other fields. Data field is where you save the values from the popup form, which are then accessible here. -->
		<h4 class="appointment-title">{{appointment_props.data.title}}</h4>
		<small v-show="(appointment_props.end - appointment_props.start) > 2">{{appointment_props.data.description}}</small>
		<span class="time">{{appointment_props.start_value.value | normalizeDate('hh:mm A')}} - {{appointment_props.end_value.value | normalizeDate('hh:mm A')}}</span>
	</div>
</kalendar>

<script>
	...
	completeAppointment(popup_data, form_data) {
		let payload = {
			data: {
				title: form_data.title,
				description: form_data.description,
			},
			from: popup_data.appointment_props.start_value.value,
			to: popup_data.appointment_props.end_value.value,
			date: format(popup_data.appointment_props.start_value.value, 'YYYY-MM-DD'),
		};
		this.appointments.push(payload);
		this.new_appointment = {
			title: null,
			description: null,
		};
		popup_data.close_popup = true;
	},
</script>