选择内部属性与数组中的值匹配的lodash元素 [英] Selecting elements with lodash where inner properties match values in an array

问题描述

我目前有以下内容，并且想知道是否有一种更简洁的方法来执行此操作，因为我不喜欢包含该标志.

I currently have the following and want to know if there is a cleaner way to do it since I do not like the inclusion of the flag.

const countries = [...];
const religionFilter = [ "religA", "religB" ];
const religionFilteredCountries = [];

_.forEach(countries,
    c => {
        let flag = false;

        _.forEach(c.info, i => {
            if (_.includes(religionFilter, i.religions)) {
                flag = true;
            }
        });
        if (flag) {
            religionFilteredCountries.push(c);
        }
    }
);

这是 jsfiddle .

这是更新的 jsfiddle .

推荐答案

由于您已经在使用lodash，因此可以这样编写religionFilteredCountries:

Since you're already using lodash, you can write religionFilteredCountries like this:

const religionFilteredCountries =
  countries.filter((c) => _.intersection(religionFilter, c.religions).length > 0);

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