Solid Example: CreateThrottledSignal

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import { createSignal } from 'solid-js'
import { render } from 'solid-js/web'
import { createThrottledSignal } from '@tanstack/solid-pacer/throttler'

function App1() {
  const [instantCount, setInstantCount] = createSignal(0)

  // higher-level hook that uses Solid.createSignal with the state setter automatically throttled
  // optionally, grab the throttler from the last index of the returned array
  const [throttledCount, setThrottledCount, throttler] = createThrottledSignal(
    instantCount(),
    {
      wait: 1000,
      // get enabled() {
      //   return instantCount() > 2
      // },
    },
    // Alternative to throttler.Subscribe: pass a selector as 3rd arg to track state and subscribe to updates
    // (state) => ({
    //   executionCount: state.executionCount,
    // }),
  )

  function increment() {
    const newInstantCount = instantCount() + 1
    setInstantCount(newInstantCount)
    setThrottledCount(newInstantCount) // throttled state update
  }

  return (
    <div>
      <h1>TanStack Pacer createThrottledSignal Example 1</h1>
      <table>
        <tbody>
          <throttler.Subscribe
            selector={(state) => ({
              executionCount: state.executionCount,
            })}
          >
            {(state) => (
              <tr>
                <td>Execution Count:</td>
                <td>{state().executionCount}</td>
              </tr>
            )}
          </throttler.Subscribe>
          <tr>
            <td>Instant Count:</td>
            <td>{instantCount()}</td>
          </tr>
          <tr>
            <td>Throttled Count:</td>
            <td>{throttledCount()}</td>
          </tr>
        </tbody>
      </table>
      <div>
        <button onClick={increment}>Increment</button>
      </div>
    </div>
  )
}

function App2() {
  const [instantSearch, setInstantSearch] = createSignal('')

  // higher-level hook that uses Solid.createSignal with the state setter automatically throttled
  const [throttledSearch, setThrottledSearch, throttler] =
    createThrottledSignal(
      instantSearch(),
      {
        wait: 1000,
        // get enabled() {
        //   return instantSearch().length > 2
        // },
      },
      // Alternative to throttler.Subscribe: pass a selector as 3rd arg to track state and subscribe to updates
      // (state) => ({
      //   executionCount: state.executionCount,
      // }),
    )

  function handleSearchChange(e: Event) {
    const target = e.target as HTMLInputElement
    const newValue = target.value
    setInstantSearch(newValue)
    setThrottledSearch(newValue)
  }

  return (
    <div>
      <h1>TanStack Pacer createThrottledSignal Example 2</h1>
      <div>
        <input
          autofocus
          type="search"
          value={instantSearch()}
          onInput={handleSearchChange}
          placeholder="Type to search..."
          style={{ width: '100%' }}
        />
      </div>
      <table>
        <tbody>
          <throttler.Subscribe
            selector={(state) => ({
              executionCount: state.executionCount,
            })}
          >
            {(state) => (
              <tr>
                <td>Execution Count:</td>
                <td>{state().executionCount}</td>
              </tr>
            )}
          </throttler.Subscribe>
          <tr>
            <td>Instant Search:</td>
            <td>{instantSearch()}</td>
          </tr>
          <tr>
            <td>Throttled Search:</td>
            <td>{throttledSearch()}</td>
          </tr>
        </tbody>
      </table>
    </div>
  )
}

function App3() {
  const [currentValue, setCurrentValue] = createSignal(50)
  const [instantExecutionCount, setInstantExecutionCount] = createSignal(0)

  // higher-level hook that uses Solid.createSignal with the state setter automatically throttled
  const [throttledValue, setThrottledValue, throttler] = createThrottledSignal(
    currentValue(),
    {
      wait: 250,
    },
    // Alternative to throttler.Subscribe: pass a selector as 3rd arg to track state and subscribe to updates
    // (state) => ({
    //   executionCount: state.executionCount,
    // }),
  )

  function handleRangeChange(e: Event) {
    const target = e.target as HTMLInputElement
    const newValue = parseInt(target.value, 10)
    setCurrentValue(newValue)
    setInstantExecutionCount((c) => c + 1)
    setThrottledValue(newValue)
  }

  return (
    <div>
      <h1>TanStack Pacer createThrottledSignal Example 3</h1>
      <div style={{ 'margin-bottom': '20px' }}>
        <label>
          Current Range:
          <input
            type="range"
            min="0"
            max="100"
            value={currentValue()}
            onInput={handleRangeChange}
            style={{ width: '100%' }}
          />
          <span>{currentValue()}</span>
        </label>
      </div>
      <div style={{ 'margin-bottom': '20px' }}>
        <label>
          Throttled Range (Readonly):
          <input
            type="range"
            min="0"
            max="100"
            value={throttledValue()}
            disabled
            style={{ width: '100%' }}
          />
          <span>{throttledValue()}</span>
        </label>
      </div>
      <table>
        <tbody>
          <tr>
            <td>Instant Execution Count:</td>
            <td>{instantExecutionCount()}</td>
          </tr>
          <throttler.Subscribe
            selector={(state) => ({
              executionCount: state.executionCount,
            })}
          >
            {(state) => (
              <>
                <tr>
                  <td>Throttled Execution Count:</td>
                  <td>{state().executionCount}</td>
                </tr>
                <tr>
                  <td>Saved Executions:</td>
                  <td>
                    {instantExecutionCount() - state().executionCount} (
                    {instantExecutionCount() > 0
                      ? (
                          ((instantExecutionCount() - state().executionCount) /
                            instantExecutionCount()) *
                          100
                        ).toFixed(2)
                      : 0}
                    % Reduction in execution calls)
                  </td>
                </tr>
              </>
            )}
          </throttler.Subscribe>
        </tbody>
      </table>
      <div style={{ color: '#666', 'font-size': '0.9em' }}>
        <p>Throttled to 1 update per 250ms</p>
      </div>
    </div>
  )
}

render(
  () => (
    <div>
      <App1 />
      <hr />
      <App2 />
      <hr />
      <App3 />
    </div>
  ),
  document.getElementById('root')!,
)

import { createSignal } from 'solid-js'
import { render } from 'solid-js/web'
import { createThrottledSignal } from '@tanstack/solid-pacer/throttler'

function App1() {
  const [instantCount, setInstantCount] = createSignal(0)

  // higher-level hook that uses Solid.createSignal with the state setter automatically throttled
  // optionally, grab the throttler from the last index of the returned array
  const [throttledCount, setThrottledCount, throttler] = createThrottledSignal(
    instantCount(),
    {
      wait: 1000,
      // get enabled() {
      //   return instantCount() > 2
      // },
    },
    // Alternative to throttler.Subscribe: pass a selector as 3rd arg to track state and subscribe to updates
    // (state) => ({
    //   executionCount: state.executionCount,
    // }),
  )

  function increment() {
    const newInstantCount = instantCount() + 1
    setInstantCount(newInstantCount)
    setThrottledCount(newInstantCount) // throttled state update
  }

  return (
    <div>
      <h1>TanStack Pacer createThrottledSignal Example 1</h1>
      <table>
        <tbody>
          <throttler.Subscribe
            selector={(state) => ({
              executionCount: state.executionCount,
            })}
          >
            {(state) => (
              <tr>
                <td>Execution Count:</td>
                <td>{state().executionCount}</td>
              </tr>
            )}
          </throttler.Subscribe>
          <tr>
            <td>Instant Count:</td>
            <td>{instantCount()}</td>
          </tr>
          <tr>
            <td>Throttled Count:</td>
            <td>{throttledCount()}</td>
          </tr>
        </tbody>
      </table>
      <div>
        <button onClick={increment}>Increment</button>
      </div>
    </div>
  )
}

function App2() {
  const [instantSearch, setInstantSearch] = createSignal('')

  // higher-level hook that uses Solid.createSignal with the state setter automatically throttled
  const [throttledSearch, setThrottledSearch, throttler] =
    createThrottledSignal(
      instantSearch(),
      {
        wait: 1000,
        // get enabled() {
        //   return instantSearch().length > 2
        // },
      },
      // Alternative to throttler.Subscribe: pass a selector as 3rd arg to track state and subscribe to updates
      // (state) => ({
      //   executionCount: state.executionCount,
      // }),
    )

  function handleSearchChange(e: Event) {
    const target = e.target as HTMLInputElement
    const newValue = target.value
    setInstantSearch(newValue)
    setThrottledSearch(newValue)
  }

  return (
    <div>
      <h1>TanStack Pacer createThrottledSignal Example 2</h1>
      <div>
        <input
          autofocus
          type="search"
          value={instantSearch()}
          onInput={handleSearchChange}
          placeholder="Type to search..."
          style={{ width: '100%' }}
        />
      </div>
      <table>
        <tbody>
          <throttler.Subscribe
            selector={(state) => ({
              executionCount: state.executionCount,
            })}
          >
            {(state) => (
              <tr>
                <td>Execution Count:</td>
                <td>{state().executionCount}</td>
              </tr>
            )}
          </throttler.Subscribe>
          <tr>
            <td>Instant Search:</td>
            <td>{instantSearch()}</td>
          </tr>
          <tr>
            <td>Throttled Search:</td>
            <td>{throttledSearch()}</td>
          </tr>
        </tbody>
      </table>
    </div>
  )
}

function App3() {
  const [currentValue, setCurrentValue] = createSignal(50)
  const [instantExecutionCount, setInstantExecutionCount] = createSignal(0)

  // higher-level hook that uses Solid.createSignal with the state setter automatically throttled
  const [throttledValue, setThrottledValue, throttler] = createThrottledSignal(
    currentValue(),
    {
      wait: 250,
    },
    // Alternative to throttler.Subscribe: pass a selector as 3rd arg to track state and subscribe to updates
    // (state) => ({
    //   executionCount: state.executionCount,
    // }),
  )

  function handleRangeChange(e: Event) {
    const target = e.target as HTMLInputElement
    const newValue = parseInt(target.value, 10)
    setCurrentValue(newValue)
    setInstantExecutionCount((c) => c + 1)
    setThrottledValue(newValue)
  }

  return (
    <div>
      <h1>TanStack Pacer createThrottledSignal Example 3</h1>
      <div style={{ 'margin-bottom': '20px' }}>
        <label>
          Current Range:
          <input
            type="range"
            min="0"
            max="100"
            value={currentValue()}
            onInput={handleRangeChange}
            style={{ width: '100%' }}
          />
          <span>{currentValue()}</span>
        </label>
      </div>
      <div style={{ 'margin-bottom': '20px' }}>
        <label>
          Throttled Range (Readonly):
          <input
            type="range"
            min="0"
            max="100"
            value={throttledValue()}
            disabled
            style={{ width: '100%' }}
          />
          <span>{throttledValue()}</span>
        </label>
      </div>
      <table>
        <tbody>
          <tr>
            <td>Instant Execution Count:</td>
            <td>{instantExecutionCount()}</td>
          </tr>
          <throttler.Subscribe
            selector={(state) => ({
              executionCount: state.executionCount,
            })}
          >
            {(state) => (
              <>
                <tr>
                  <td>Throttled Execution Count:</td>
                  <td>{state().executionCount}</td>
                </tr>
                <tr>
                  <td>Saved Executions:</td>
                  <td>
                    {instantExecutionCount() - state().executionCount} (
                    {instantExecutionCount() > 0
                      ? (
                          ((instantExecutionCount() - state().executionCount) /
                            instantExecutionCount()) *
                          100
                        ).toFixed(2)
                      : 0}
                    % Reduction in execution calls)
                  </td>
                </tr>
              </>
            )}
          </throttler.Subscribe>
        </tbody>
      </table>
      <div style={{ color: '#666', 'font-size': '0.9em' }}>
        <p>Throttled to 1 update per 250ms</p>
      </div>
    </div>
  )
}

render(
  () => (
    <div>
      <App1 />
      <hr />
      <App2 />
      <hr />
      <App3 />
    </div>
  ),
  document.getElementById('root')!,
)