useDevicePixelRatio

Reactively track window.devicePixelRatio

NOTE: there is no event listener for window.devicePixelRatio change. So this function uses Testing media queries programmatically (window.matchMedia) applying the same mechanism as described in this example.

Usage

import { useDevicePixelRatio } from '@vueuse/core'

export default {
  setup() {
    const { pixelRatio } = useDevicePixelRatio()

    return { pixelRatio }
  },
}

Component Usage

This function also provides a renderless component version via the @vueuse/components package. Learn more about the usage.

<UseDevicePixelRatio v-slot="{ pixelRatio }">
  Pixel Ratio: {{ pixelRatio }}
</UseDevicePixelRatio>

Type Declarations

/**
 * Reactively track `window.devicePixelRatio`.
 *
 * @see https://vueuse.org/useDevicePixelRatio
 * @param options
 */
export declare function useDevicePixelRatio({ window }?: ConfigurableWindow): {
  pixelRatio: Ref<number>
}
export type UseDevicePixelRatioReturn = ReturnType<typeof useDevicePixelRatio>

Source

Source • Demo • Docs