Rating
<sl-rating> | SlRating
Ratings give users a way to quickly view and provide feedback.
<sl-rating label="Rating"></sl-rating>
Examples
Labels
Ratings are commonly identified contextually, so labels aren’t displayed. However, you should always
provide one for assistive devices using the label attribute.
<sl-rating label="Rate this component"></sl-rating>
Maximum Value
Ratings are 0–5 by default. To change the maximum possible value, use the max attribute.
<sl-rating label="Rating" max="3"></sl-rating>
Precision
Use the precision attribute to let users select fractional ratings.
<sl-rating label="Rating" precision="0.5" value="2.5"></sl-rating>
Symbol Sizes
Set the --symbol-size custom property to adjust the size.
<sl-rating label="Rating" style="--symbol-size: 2rem;"></sl-rating>
Readonly
Use the readonly attribute to display a rating that users can’t change.
<sl-rating label="Rating" readonly value="3"></sl-rating>
Disabled
Use the disable attribute to disable the rating.
<sl-rating label="Rating" disabled value="3"></sl-rating>
Detecting Hover
Use the sl-hover event to detect when the user hovers over (or touch and drag) the
rating. This lets you hook into values as the user interacts with the rating, but before they select a
value.
The event has a payload with phase and value properties. The
phase property tells when hovering starts, moves to a new value, and ends. The
value property tells what the rating’s value would be if the user were to commit to the
hovered value.
<div class="detect-hover"> <sl-rating label="Rating"></sl-rating> <span></span> </div> <script> const rating = document.querySelector('.detect-hover > sl-rating'); const span = rating.nextElementSibling; const terms = ['No rating', 'Terrible', 'Bad', 'OK', 'Good', 'Excellent']; rating.addEventListener('sl-hover', event => { span.textContent = terms[event.detail.value]; // Clear feedback when hovering stops if (event.detail.phase === 'end') { span.textContent = ''; } }); </script> <style> .detect-hover span { position: relative; top: -4px; left: 8px; border-radius: var(--sl-border-radius-small); background: var(--sl-color-neutral-900); color: var(--sl-color-neutral-0); text-align: center; padding: 4px 6px; } .detect-hover span:empty { display: none; } </style>
Custom Icons
You can provide custom icons by passing a function to the getSymbol property.
<sl-rating label="Rating" class="rating-hearts" style="--symbol-color-active: #ff4136;"></sl-rating> <script> const rating = document.querySelector('.rating-hearts'); rating.getSymbol = () => '<sl-icon name="heart"></sl-icon>'; </script>
Value-based Icons
You can also use the getSymbol property to render different icons based on value.
<sl-rating label="Rating" class="rating-emojis"></sl-rating> <script> const rating = document.querySelector('.rating-emojis'); rating.getSymbol = value => { const icons = ['face-angry', 'face-frown', 'face-meh', 'face-smile', 'face-laugh']; return `<sl-icon name="${icons[value - 1]}"></sl-icon>`; }; </script>
Chip Symbol
Set symbol="chip" to render a numbered CSAT/Likert-style scale instead of stars. Chips
are a single-select, whole-number scale — unlike stars, they don’t support fractional
precision.
<sl-rating label="How useful was this?" symbol="chip" value="3"></sl-rating>
Chip Sizes
Use the size attribute to change the size of the chips. This attribute only affects
symbol="chip" — star mode continues to use the --symbol-size custom
property.
<sl-rating label="Rating" symbol="chip" size="small" value="2"></sl-rating> <br /><br /> <sl-rating label="Rating" symbol="chip" size="medium" value="3"></sl-rating> <br /><br /> <sl-rating label="Rating" symbol="chip" size="large" value="4"></sl-rating>
Chip with Tooltip
Add show-tooltip to reveal a tooltip to the right of the chips with a sentiment label for
the current value. The label follows the value automatically as you hover or select a chip.
<sl-rating label="How useful was this?" symbol="chip" show-tooltip></sl-rating>
For a different scale, set tooltipLabels to an array of terms, one per whole-number value
from 0 to max. It’s also used as each chip’s accessible name, so assistive technology
always announces the sentiment even when the tooltip isn’t shown.
<sl-rating label="Agreement" symbol="chip" show-tooltip max="4" class="rating-agreement"></sl-rating> <script> const rating = document.querySelector('.rating-agreement'); const terms = ['No answer', 'Disagree', 'Neutral', 'Agree', 'Strongly agree']; rating.tooltipLabels = terms; </script>
If a label can’t be expressed as a simple array — say it depends on other state — override
getTooltipLabel instead; it defaults to reading from tooltipLabels.
Chip Disabled
Chips respect the same disabled attribute as stars, dimming to 50% opacity and removing
every chip from the tab order.
<sl-rating label="Rating" symbol="chip" disabled value="3"></sl-rating>
Properties
| Name | Description | Reflects | Type | Default |
|---|---|---|---|---|
label
|
A label that describes the rating to assistive devices. |
string
|
''
|
|
value
|
The current rating. |
number
|
0
|
|
max
|
The highest rating to show. |
number
|
5
|
|
precision
|
The precision at which the rating will increase and decrease. For example, to allow half-star
ratings, set this attribute to 0.5.
|
number
|
1
|
|
readonly
|
Makes the rating readonly. |
|
boolean
|
false
|
disabled
|
Disables the rating. |
|
boolean
|
false
|
getSymbol
|
A function that customizes the symbol to be rendered. The first and only argument is the
rating’s current value. The function should return a string containing trusted HTML of the
symbol to render at the specified value. Works well with <sl-icon> elements.
|
(value: number) => string
|
- | |
symbol
|
Determines how the rating is rendered: a continuous star scale, or a discrete numbered-chip (CSAT/Likert) scale. |
|
RatingSymbol
|
'star'
|
size
|
The size of the chips. Only meaningful when symbol="chip"; star mode keeps using
--symbol-size.
|
|
RatingSize
|
'medium'
|
showTooltip
show-tooltip
|
Shows an sl-tooltip with a sentiment label to the right of the chips. Only
meaningful when symbol="chip".
|
|
boolean
|
false
|
tooltipLabels
tooltip-labels
|
The sentiment label for each whole-number value (0-max), in order. Used as each
chip’s accessible name, and, when show-tooltip is set, as the tooltip’s content.
Defaults to the design system’s 0–5 CSAT scale — set this directly for a different
max/scale, e.g. rating.tooltipLabels = ['No answer', 'Disagree', ...].
|
string[]
|
[ 'Not yet rated', 'Not useful', 'Slightly useful', 'Useful', 'Very useful', 'Exactly what we
need' ]
|
|
getTooltipLabel
|
Returns the sentiment label for a given whole-number value (0-max). Defaults to
reading from tooltipLabels; override this instead if the label can’t be expressed
as a simple array (e.g. it depends on other state).
|
(value: number) => string
|
- | |
updateComplete |
A read-only promise that resolves when the component has finished updating. |
Learn more about attributes and properties.
Events
| Name | React Event | Description | Event Detail |
|---|---|---|---|
sl-change |
|
Emitted when the rating’s value changes. | - |
sl-hover |
|
Emitted when the user hovers over a value. The phase property indicates when
hovering starts, moves to a new value, or ends. The value property tells what the
rating’s value would be if the user were to commit to the hovered value.
|
{ phase: 'start' | 'move' | 'end', value: number }
|
Learn more about events.
Methods
| Name | Description | Arguments |
|---|---|---|
focus() |
Sets focus on the rating. |
options: FocusOptions
|
blur() |
Removes focus from the rating. | - |
Learn more about methods.
Custom Properties
| Name | Description | Default |
|---|---|---|
--symbol-color |
The inactive color for symbols. | |
--symbol-color-active |
The active color for symbols. | |
--symbol-size |
The size of symbols. | |
--symbol-spacing |
The spacing to use around symbols. |
Learn more about customizing CSS custom properties.
Parts
| Name | Description |
|---|---|
base |
The component’s base wrapper. |
chip |
Each individual chip, only rendered when symbol="chip". |
chip--selected |
Applied to the currently selected chip. |
Learn more about customizing CSS parts.