代码优化：使用解构赋值、可选链和 map 方法提升性能

可以对代码进行以下优化：\n\n1. 使用解构赋值简化代码，将item.assesseeId和suggested.assesseeId提取出来，避免重复引用item和suggested对象。\n\njavascript\nthis.tableData.forEach((item) => {\n const { assesseeId } = item;\n const suggestedItem = suggestedDataList.find(\n (suggested) => assesseeId === suggested.assesseeId\n );\n if (suggestedItem) {\n item["improvementContent"] = suggestedItem.improvementContent || "";\n }\n});\n\n\n2. 使用可选链操作符（Optional Chaining Operator）简化代码，避免对可能为null或undefined的属性进行访问。\n\njavascript\nthis.tableData.forEach((item) => {\n const { assesseeId } = item;\n const suggestedItem = suggestedDataList.find(\n (suggested) => assesseeId === suggested?.assesseeId\n );\n if (suggestedItem) {\n item["improvementContent"] = suggestedItem?.improvementContent || "";\n }\n});\n\n\n3. 使用map方法替代forEach，并返回修改后的数组。\n\njavascript\nthis.tableData = this.tableData.map((item) => {\n const { assesseeId } = item;\n const suggestedItem = suggestedDataList.find(\n (suggested) => assesseeId === suggested?.assesseeId\n );\n if (suggestedItem) {\n return { ...item, improvementContent: suggestedItem?.improvementContent || "" };\n }\n return item;\n});\n\n\n通过以上优化，可以提高代码的可读性和性能。