使用.filter比较两个数组并返回不匹配的值 [英] Using .filter to compare two arrays and return values that aren't matched

问题描述

我在比较两个数组的元素并过滤掉匹配值时遇到了一些问题。我只想返回 wordsToRemove 中未包含的数组元素。

I'm having some issues comparing the elements of two arrays and filtering out matching values. I only want to return array elements that are NOT included within wordsToRemove.

var fullWordList = ['1','2','3','4','5'];
var wordsToRemove = ['1','2','3'];

var filteredKeywords = fullWordList.forEach(function(fullWordListValue) {
    wordsToRemove.filter(function(wordsToRemoveValue) {
        return fullWordListValue !== wordsToRemoveValue
    })
});

console.log(filteredKeywords);

推荐答案

您可以使用 过滤器 和 包括 实现此目的：

You can use filter and includes to achieve this:

var fullWordList = ['1','2','3','4','5'];
var wordsToRemove = ['1','2','3'];

var filteredKeywords = fullWordList.filter((word) => !wordsToRemove.includes(word));

console.log(filteredKeywords);

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