Inputs

Slider

Range input built on Bits UI with a single thumb or two thumbs, plus min, max and step.

<script>
  import { Slider } from "@codeatlasdev/ui";
  let volume = $state(60);
  let range = $state([20, 75]);
</script>

<Slider bind:value={volume} />
<Slider bind:values={range} />

value and values are independent: bind one or the other. The slider has no built-in label or value readout, so render those next to it as the demos do. Arrow keys move by step, Home and End jump to the bounds.

Single value

Binds a plain number. Default range is 0 to 100.

Volume

Brightness

40%

Code

<script lang="ts">
  import { Slider } from '@codeatlasdev/ui';

  let volume = $state(60);
  let brightness = $state(40);
</script>

<div class="col">
  <div class="row">
    <span class="label">Volume</span>
    <Slider bind:value={volume} min={0} max={100} />
    <span class="val">{volume}</span>
  </div>
  <div class="row">
    <span class="label">Brightness</span>
    <Slider bind:value={brightness} min={0} max={100} />
    <span class="val">{brightness}%</span>
  </div>
</div>

<style>
  .col {
    display: flex;
    flex-direction: column;
    gap: var(--ca-space-5);
    width: 100%;
    max-width: 480px;
  }

  .row {
    display: flex;
    align-items: center;
    gap: 14px;
  }

  .label {
    flex-shrink: 0;
    min-width: 76px;
    font-size: var(--ca-font-size-body2);
    color: var(--ca-text-secondary);
  }

  .val {
    flex-shrink: 0;
    min-width: 64px;
    text-align: right;
    font-family: var(--ca-font-mono);
    font-size: var(--ca-font-size-body2);
    font-weight: 600;
    color: var(--ca-brand-text);
  }
</style>

Range

Bind a [min, max] tuple to values for two thumbs.

Price

$20 – $75

Code

<script lang="ts">
  import { Slider } from '@codeatlasdev/ui';

  let range = $state<[number, number]>([20, 75]);
</script>

<div class="row">
  <span class="label">Price</span>
  <Slider bind:values={range} min={0} max={100} />
  <span class="val">${range[0]} – ${range[1]}</span>
</div>

<style>
  .row {
    display: flex;
    align-items: center;
    gap: 14px;
    width: 100%;
    max-width: 480px;
  }

  .label {
    flex-shrink: 0;
    min-width: 76px;
    font-size: var(--ca-font-size-body2);
    color: var(--ca-text-secondary);
  }

  .val {
    flex-shrink: 0;
    min-width: 88px;
    text-align: right;
    font-family: var(--ca-font-mono);
    font-size: var(--ca-font-size-body2);
    font-weight: 600;
    color: var(--ca-brand-text);
  }
</style>

Step and disabled

step={10} snaps to increments of 10.

Step 10

Disabled

Code

<script lang="ts">
  import { Slider } from '@codeatlasdev/ui';

  let stepped = $state(50);
</script>

<div class="col">
  <div class="row">
    <span class="label">Step 10</span>
    <Slider bind:value={stepped} min={0} max={100} step={10} />
    <span class="val">{stepped}</span>
  </div>
  <div class="row">
    <span class="label">Disabled</span>
    <Slider value={35} disabled />
    <span class="val">35</span>
  </div>
</div>

<style>
  .col {
    display: flex;
    flex-direction: column;
    gap: var(--ca-space-5);
    width: 100%;
    max-width: 480px;
  }

  .row {
    display: flex;
    align-items: center;
    gap: 14px;
  }

  .label {
    flex-shrink: 0;
    min-width: 76px;
    font-size: var(--ca-font-size-body2);
    color: var(--ca-text-secondary);
  }

  .val {
    flex-shrink: 0;
    min-width: 64px;
    text-align: right;
    font-family: var(--ca-font-mono);
    font-size: var(--ca-font-size-body2);
    font-weight: 600;
    color: var(--ca-brand-text);
  }
</style>

Props

Prop	Type	Default	Description
`value`	`number`	–	Single-value mode: bind a plain number. Defaults to the midpoint when neither value nor values is set.
`values`	`[number, number]`	–	Range mode: bind a [min, max] tuple.
`min`	`number`	`0`	Minimum value.
`max`	`number`	`100`	Maximum value.
`step`	`number`	`1`	Step increment.
`disabled`	`boolean`	`false`	Disables the slider.
`class`	`string`	–	Extra classes on the root.
`onchange`	`(value: number[]) => void`	–	Called on change. Always receives an array: one number in single mode, two in range mode.