usePrecision

反应式性地设置数字的精度。

¥Reactively set the precision of a number.

用法

¥Usage

import { usePrecision } from '@vueuse/math'

const value = ref(3.1415)
const result = usePrecision(value, 2) // 3.14

const ceilResult = usePrecision(value, 2, {
  math: 'ceil'
}) // 3.15

const floorResult = usePrecision(value, 3, {
  math: 'floor'
}) // 3.141

类型声明

export interface UsePrecisionOptions {
  /**
   * Method to use for rounding
   *
   * @default 'round'
   */
  math?: "floor" | "ceil" | "round"
}
/**
 * Reactively set the precision of a number.
 *
 * @see https://vueuse.org/usePrecision
 */
export declare function usePrecision(
  value: MaybeRefOrGetter<number>,
  digits: MaybeRefOrGetter<number>,
  options?: MaybeRefOrGetter<UsePrecisionOptions>,
): ComputedRef<number>

源代码

源代码 • 文档

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