Typescript 实现倒计时功能 useCountdown

效果图

代码块

useCountdown.ts

import {onUnmounted, reactive, ref, watch} from "vue";

type union = 'days' | 'hours' | 'minutes' | 'seconds' | 'milliseconds'

export type Remains = Record<union, number>;

/**
 * 创建一个倒计时
 *
 * 用法
 */
export const useCountDown = () => {
    const remainMilliseconds = ref();
    const started = ref(false);
    const finished = ref<boolean>();
    const remains = reactive<Remains>({
        days: 0,
        hours: 0,
        minutes: 0,
        seconds: 0,
        milliseconds: 0,
    });

    const start = (deadline: number) => {
        if (started.value) {
            return
        }
        started.value = true
        loop(deadline)
    }

    const loop &#