有人可以帮我修复我的代码吗?我在本练习中使用了 forEach 方法
\n我认为我\xe2\x80\x99m关闭,但它\xe2\x80\x99s仍然给我未定义,它\xe2\x80\x99s已经在result.failure中,因为我通过添加另一个字符串/数字进行检查。
\nconst result = {\n success: ["max-length", "no-amd", "prefer-arrow-functions"],\n failure: ["no-var", "var-on-top", "linebreak",],\n skipped: ["no-extra-semi", "no-dup-keys"]\n};\nfunction makeList(arr) {\n // Only change code below this line\n const failureItems = [];\n\n const results = arr.forEach(k => failureItems.push(`<li class="text-warning">${arr[k]}</li>`));\n\n\n // Only change code above this line\n\n return failureItems;\n}\n\nconst failuresList = makeList(result.failure);\nconsole.log(failuresList);\nRun Code Online (Sandbox Code Playgroud)\n应该是这样的结果
\n[\n '<li class="text-warning">no-var</li>',\n '<li class="text-warning">var-on-top</li>',\n '<li class="text-warning">linebreak</li>'\n]\nRun Code Online (Sandbox Code Playgroud)\n但在这段代码中我的结果是这样的
\n[ '<li class="text-warning">undefined</li>',\n '<li class="text-warning">undefined</li>',\n '<li class="text-warning">undefined</li>' ]\nRun Code Online (Sandbox Code Playgroud)\n