WedManiac•3mo ago

Is there a way to limit a slider knob to a range?

So Im creating a slider which im limiting to 50. how do i ensure that the knob even when dragged with the mouse won't exceed the value? Thanks in advance!:)

tabs-test.tsx

slider.tsx

1 Reply

Deno AI Helper•3mo ago

Yes, you can limit a slider knob to a specific range by setting the min and max attributes on the input element of type range. In your case, if you want to limit the slider to a maximum value of 50, you would set the max attribute to 50. Here's an example based on the documentation:

import { Signal } from "@preact/signals";

export default function SynchronizedSlider(props: { slider: Signal<number> }) {
  return (
    <input
      class="w-full"
      type="range"
      min={1} // Set the minimum value of the slider
      max={50} // Set the maximum value of the slider to 50
      value={props.slider.value}
      onInput={(e) => {
        const newValue = Number(e.currentTarget.value);
        props.slider.value = newValue > 50 ? 50 : newValue; // Ensure the value does not exceed 50
      }}
    />
  );
}

import { Signal } from "@preact/signals";

export default function SynchronizedSlider(props: { slider: Signal<number> }) {
  return (
    <input
      class="w-full"
      type="range"
      min={1} // Set the minimum value of the slider
      max={50} // Set the maximum value of the slider to 50
      value={props.slider.value}
      onInput={(e) => {
        const newValue = Number(e.currentTarget.value);
        props.slider.value = newValue > 50 ? 50 : newValue; // Ensure the value does not exceed 50
      }}
    />
  );
}

In this code snippet, the max attribute is set to 50, which means the slider will not allow the user to select a value higher than 50. Additionally, in the onInput event handler, there's a check to ensure that if the new value exceeds 50, it is set back to 50. This provides an extra layer of protection in case the max attribute is somehow bypassed or not respected by the browser. Remember to replace the class names and other props to match your specific implementation. 🦕

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