Date Range Field

Allows users to input a range of dates within a designated field.

Hotel dates 
	<script lang="ts">
  import { DateRangeField } from "bits-ui";
</script>
 
<DateRangeField.Root class="flex w-full max-w-[320px] flex-col gap-1.5">
  <DateRangeField.Label class="block select-none text-sm font-medium">
    Hotel dates
  </DateRangeField.Label>
  <div
    class="flex h-input w-full select-none items-center rounded-input border border-border-input bg-background px-2 py-3 text-sm tracking-[0.01em] text-foreground focus-within:border-border-input-hover focus-within:shadow-date-field-focus hover:border-border-input-hover"
  >
    {#each ["start", "end"] as const as type}
      <DateRangeField.Input {type}>
        {#snippet children({ segments })}
          {#each segments as { part, value }}
            <div class="inline-block select-none">
              {#if part === "literal"}
                <DateRangeField.Segment
                  {part}
                  class="p-1 text-muted-foreground"
                >
                  {value}
                </DateRangeField.Segment>
              {:else}
                <DateRangeField.Segment
                  {part}
                  class="rounded-5px px-1 py-1 hover:bg-muted focus:bg-muted focus:text-foreground focus-visible:!ring-0 focus-visible:!ring-offset-0 aria-[valuetext=Empty]:text-muted-foreground"
                >
                  {value}
                </DateRangeField.Segment>
              {/if}
            </div>
          {/each}
        {/snippet}
      </DateRangeField.Input>
      {#if type === "start"}
        <div aria-hidden="true" class="px-1 text-muted-foreground">–⁠⁠⁠⁠⁠</div>
      {/if}
    {/each}
  </div>
</DateRangeField.Root>

Structure

	<script lang="ts">
	import { DateRangeField } from "$lib";
</script>
 
<DateRangeField.Root>
	<DateRangeField.Label>Check-in date</DateRangeField.Label>
	{#each ["start", "end"] as const as type}
		<DateRangeField.Input {type}>
			{#snippet children({ segments })}
				{#each segments as { part, value }}
					<DateRangeField.Segment {part}>
						{value}
					</DateRangeField.Segment>
				{/each}
			{/snippet}
		</DateRangeField.Input>
	{/each}
</DateRangeField.Root>

Managing Placeholder State

Bits UI offers several approaches to manage and synchronize the component's placeholder state, catering to different levels of control and integration needs.

1. Two-Way Binding

For seamless state synchronization, use Svelte's bind:placeholder directive. This method automatically keeps your local state in sync with the component's internal state.

	<script lang="ts">
	import { DateRangeField } from "bits-ui";
	import { CalendarDateTime } from "@internationalized/date";
	let myPlaceholder = $state(new CalendarDateTime(2024, 8, 3, 12, 30));
</script>
 
<DateRangeField.Root bind:placeholder={myPlaceholder}>
	<!-- ... -->
</DateRangeField.Root>

Key Benefits

  • Simplifies state management
  • Automatically updates myPlaceholder when the internal state changes
  • Allows external control (e.g., changing the placeholder via a separate button/programmatically)

2. Change Handler

For more granular control or to perform additional logic on state changes, use the onPlaceholderChange prop. This approach is useful when you need to execute custom logic alongside state updates.

	<script lang="ts">
	import { DateRangeField } from "bits-ui";
	let myPlaceholder = $state(new CalendarDateTime(2024, 8, 3, 12, 30));
</script>
 
<DateRangeField.Root
	placeholder={myPlaceholder}
	onPlaceholderChange={(p) => {
		myPlaceholder = p.set({ year: 2025 });
	}}
>
	<!-- ... -->
</DateRangeField.Root>

Use Cases

  • Implementing custom behaviors on placeholder change
  • Integrating with external state management solutions
  • Triggering side effects (e.g., logging, data fetching)

3. Fully Controlled

For complete control over the component's placeholder state, use the controlledPlaceholder prop. This approach requires you to manually manage the state, giving you full control over when and how the component responds to change events.

To implement controlled state:

  1. Set the controlledPlaceholder prop to true on the DateRangeField.Root component.
  2. Provide a placeholder prop to DateRangeField.Root, which should be a variable holding the current state.
  3. Implement an onPlaceholderChange handler to update the state when the internal state changes.
	<script lang="ts">
	import { DateRangeField } from "bits-ui";
	let myPlaceholder = $state();
</script>
 
<DateRangeField.Root
	controlledPlaceholder
	placeholder={myPlaceholder}
	onPlaceholderChange={(p) => (myPlaceholder = p)}
>
	<!-- ... -->
</DateRangeField.Root>

When to Use

  • Implementing complex logic
  • Coordinating multiple UI elements
  • Debugging state-related issues

Managing Value State

Bits UI offers several approaches to manage and synchronize the component's value state, catering to different levels of control and integration needs.

1. Two-Way Binding

For seamless state synchronization, use Svelte's bind:value directive. This method automatically keeps your local state in sync with the component's internal state.

	<script lang="ts">
	import { DateRangeField } from "bits-ui";
	import { CalendarDateTime } from "@internationalized/date";
	let myValue = $state({
		start: new CalendarDateTime(2024, 8, 3, 12, 30),
		end: new CalendarDateTime(2024, 8, 4, 12, 30),
	});
</script>
 
<button
	onclick={() => {
		value = {
			start: value.start.add({ days: 1 }),
			end: value.end.add({ days: 1 }),
		};
	}}
>
	Add 1 day
</button>
<DateRangeField.Root bind:value={myValue}>
	<!-- ... -->
</DateRangeField.Root>

Key Benefits

  • Simplifies state management
  • Automatically updates myValue when the internal state changes
  • Allows external control (e.g., changing the value via a separate button/programmatically)

2. Change Handler

For more granular control or to perform additional logic on state changes, use the onValueChange prop. This approach is useful when you need to execute custom logic alongside state updates.

	<script lang="ts">
	import { DateRangeField } from "bits-ui";
	import { CalendarDateTime } from "@internationalized/date";
	let myValue = $state({
		start: new CalendarDateTime(2024, 8, 3, 12, 30),
		end: new CalendarDateTime(2024, 8, 4, 12, 30),
	});
</script>
 
<DateRangeField.Root
	value={myValue}
	onValueChange={(v) => {
		value = {
			start: v.start?.set({ hour: v.start.hour + 1 }),
			end: v.end?.set({ hour: v.end.hour + 1 }),
		};
	}}
>
	<!-- ... -->
</DateRangeField.Root>

Use Cases

  • Implementing custom behaviors on value change
  • Integrating with external state management solutions
  • Triggering side effects (e.g., logging, data fetching)

3. Fully Controlled

For complete control over the component's value state, use the controlledValue prop. This approach requires you to manually manage the state, giving you full control over when and how the component responds to change events.

To implement controlled state:

  1. Set the controlledValue prop to true on the DateRangeField.Root component.
  2. Provide a value prop to DateRangeField.Root, which should be a variable holding the current state.
  3. Implement an onValueChange handler to update the state when the internal state changes.
	<script lang="ts">
	import { DateRangeField } from "bits-ui";
	let myValue = $state();
</script>
 
<DateRangeField.Root controlledValue value={myValue} onValueChange={(v) => (myValue = v)}>
	<!-- ... -->
</DateRangeField.Root>

When to Use

  • Implementing complex logic
  • Coordinating multiple UI elements
  • Debugging state-related issues

API Reference

DateRangeField.Root

The root date field component.

Property Type Description
value $bindable
DateRange

The selected date range.

Default: undefined
onValueChange
function

A function that is called when the selected date changes.

Default: undefined
controlledValue
boolean

Whether or not the value is controlled or not. If true, the component will not update the value state internally, instead it will call onValueChange when it would have otherwise, and it is up to you to update the value prop that is passed to the component.

Default: false
placeholder $bindable
DateValue

The placeholder date, which is used to determine what date to start the segments from when no value exists.

Default: undefined
onPlaceholderChange
function

A function that is called when the placeholder date changes.

Default: undefined
controlledPlaceholder
boolean

Whether or not the placeholder is controlled or not. If true, the component will not update the placeholder state internally, instead it will call onPlaceholderChange when it would have otherwise, and it is up to you to update the value prop that is passed to the component.

Default: false
isDateInvalid
function

A function that returns whether or not a date is unavailable.

Default: undefined
minValue
DateValue

The minimum valid date that can be entered.

Default: undefined
maxValue
DateValue

The maximum valid date that can be entered.

Default: undefined
granularity
enum

The granularity to use for formatting the field. Defaults to 'day' if a CalendarDate is provided, otherwise defaults to 'minute'. The field will render segments for each part of the date up to and including the specified granularity.

Default: undefined
hideTimeZone
boolean

Whether or not to hide the time zone segment of the field.

Default: false
hourCycle
enum

The hour cycle to use for formatting times. Defaults to the locale preference

Default: undefined
locale
string

The locale to use for formatting dates.

Default: 'en-US'
disabled
boolean

Whether or not the accordion is disabled.

Default: false
readonly
boolean

Whether or not the field is readonly.

Default: false
readonlySegments
EditableSegmentPart[]

An array of segments that should be readonly, which prevent user input on them.

Default: undefined
required
boolean

Whether or not the date field is required.

Default: false
onStartValueChange
function

A function that is called when the start date changes.

Default: undefined
onEndValueChange
function

A function that is called when the end date changes.

Default: undefined
ref $bindable
HTMLDivElement

The underlying DOM element being rendered. You can bind to this to get a reference to the element.

Default: undefined
children
Snippet

The children content to render.

Default: undefined
child
Snippet

Use render delegation to render your own element. See delegation docs for more information.

Default: undefined
Data Attribute Value Description
data-date-range-field-root
''

Present on the root element.

DateRangeField.Input

The container for the segments of the date field.

Property Type Description
type required
enum

The type of field to render (start or end).

Default: undefined
name
string

The name of the date field used for form submission. If provided, a hidden input element will be rendered alongside the date field.

Default: undefined
ref $bindable
HTMLDivElement

The underlying DOM element being rendered. You can bind to this to get a reference to the element.

Default: undefined
children
Snippet

The children content to render.

Default: undefined
child
Snippet

Use render delegation to render your own element. See delegation docs for more information.

Default: undefined
Data Attribute Value Description
data-invalid
''

Present on the element when the field is invalid.

data-disabled
''

Present on the element when the field is disabled.

data-date-field-input
''

Present on the element.

DateRangeField.Segment

A segment of the date field.

Property Type Description
part required
SegmentPart

The part of the date to render.

Default: undefined
ref $bindable
HTMLSpanElement

The underlying DOM element being rendered. You can bind to this to get a reference to the element.

Default: undefined
children
Snippet

The children content to render.

Default: undefined
child
Snippet

Use render delegation to render your own element. See delegation docs for more information.

Default: undefined
Data Attribute Value Description
data-invalid
''

Present on the element when the field is invalid

data-disabled
''

Present on the element when the field is disabled

data-segment
enum

The type of segment the element represents.

data-date-field-segment
''

Present on the element.

DateRangeField.Label

The label for the date field.

Property Type Description
ref $bindable
HTMLSpanElement

The underlying DOM element being rendered. You can bind to this to get a reference to the element.

Default: undefined
children
Snippet

The children content to render.

Default: undefined
child
Snippet

Use render delegation to render your own element. See delegation docs for more information.

Default: undefined
Data Attribute Value Description
data-invalid
''

Present on the element when the field is invalid

data-date-field-label
''

Present on the element.