Question

我正尝试使用以下代码从数组中删除重复的值：

for (var i = 0; i < a.length; i++)
        obj[a[i]] = a[i]
      a = new Array();
      // Removing duplicates by checking each objects with keys.
      for (var key in obj)
        a.push(obj[key]);

它删除重复项，但我的问题是，它还考虑了空格。

这是我的数组：

["Cardiologist", "Cardiologist", "Cardiologist ", "Neurologist ", "Neurologist "]

删除重复项后，我会变成这样

["Cardiologist", "Cardiologist ", "Neurologist "]

“心脏病专家”值由于空白而重复。我怎样才能得到我期望的确切结果？

Answer 1

您可以使用string.prototype.trim()从字符串的开头和结尾删除空格。我建议您在重复数据删除之前应用它。

myString.trim()

示例：

    const arr = ["Cardiologist", "Cardiologist", "Cardiologist ", "Neurologist ", "Neurologist "];
    
    const trimmedArr = arr.map((v) => v.trim());
    
    console.log(trimmedArr);

运行该命令，您会看到所有前导/后缀空格都消失了。现在您可以进行比较了！

打字稿在检查重复项时，还要考虑空白

1 个答案: