主题
useCssVar
操作 CSS 变量
¥Manipulate CSS variables
示例
用法
¥Usage
js
import { useCssVar } from '@vueuse/core'
const el = ref(null)
const color1 = useCssVar('--color', el)
const elv = ref(null)
const key = ref('--color')
const colorVal = useCssVar(key, elv)
const someEl = ref(null)
const color2 = useCssVar('--color', someEl, { initialValue: '#eee' })
类型声明
typescript
export interface UseCssVarOptions extends ConfigurableWindow {
initialValue?: string
/**
* Use MutationObserver to monitor variable changes
* @default false
*/
observe?: boolean
}
/**
* Manipulate CSS variables.
*
* @see https://vueuse.org/useCssVar
* @param prop
* @param target
* @param options
*/
export declare function useCssVar(
prop: MaybeRefOrGetter<string | null | undefined>,
target?: MaybeElementRef,
options?: UseCssVarOptions,
): Ref<string | null | undefined, string | null | undefined>