@vue-widget/hooks/es/useMemo/index.js

hooks from react to vue

import { ref, watch } from "vue";
export function useMemo(getValue, condition, shouldUpdate) {
    var cacheRef = ref(getValue());
    watch(condition, function (next, pre) {
        if (shouldUpdate) {
            if (shouldUpdate(next, pre)) {
                cacheRef.value = getValue();
            }
        }
        else {
            cacheRef.value = getValue();
        }
    });
    return cacheRef;
}