遍历数组数组并删除一个项目

Question

我的问题很奇怪，因为它是针对 OfficeScripts 的。我很确定它是基于 Javascript 的，因为那是我一直在写的内容。现在谈谈我的问题。我有一个数组数组，我正在向后循环以删除一些项目。基本上，我从一个 table 收集行数据，然后用它来过滤其他 table，然后使用这两个数据构建一个数组的数组。看起来像这样：

const Data = [["Name", "Area", "Position", "Shift"]];
const otherData = [["Training A","Course A","Level","Curricula"],["Training B","Course B","Level","Curricula"],["Training C","Course C","Level","Curricula"]];
var CombinedData = otherData.map(x=>[...Data[0], ...x]);
console.log(CombinedData);

我想要完成的是从数组的 CombinedData 数组中的每个数组中删除“Position”。现在我正在写这个，它正在清空我的数组：

const Data = [["Name", "Area", "Position", "Shift"]];
const otherData = [["Training A","Course A","Level","Curricula"],["Training B","Course B","Level","Curricula"],["Training C","Course C","Level","Curricula"]];
    var CombinedData = otherData.map(x=>[...Data[0], ...x]);
    console.log(CombinedData);
    
    for(let i = CombinedData.length -1; i>=0; i--){
      if(CombinedData[i][2] == Data[0][2]){
        CombinedData[i].splice(i,1);
          
      }
    }
    console.log(CombinedData);

我希望最终输出看起来像

CombinedData= [["Name", "Area", "Shift","Training A","Course A","Level","Curricula"],["Name", "Area", "Shift","Training B","Course B","Level","Curricula"],["Name", "Area", "Shift","Training C","Course C","Level","Curricula"]];

这显然不起作用。关于我需要做什么的任何想法？ JavaScript 不是我最擅长的语言，而且我对 OfficeScripts 完全陌生。感谢您的帮助。

Answer 1

由于您只使用 Data 的元素 0，只需过滤一次并在您的组合中使用它：

const Data = [["Name", "Area", "Position", "Shift",]];
const otherData = [["Training A","Course A","Level","Curricula"],["Training B","Course B","Level","Curricula"],["Training C","Course C","Level","Curricula"]];
var elem0 = Data[0].filter( y => y != "Position" )
var CombinedData = otherData.map(x=>[...elem0, ...x]);
console.log(CombinedData);

Answer 2

问题出在 splice(i, 1)，这应该是 splice(2, 1)，因为您需要删除第 2 个（索引）项目。

const Data = [["Name", "Area", "Position", "Shift",]];
const otherData = [["Training A","Course A","Level","Curricula"],["Training B","Course B","Level","Curricula"],["Training C","Course C","Level","Curricula"]];
    var CombinedData = otherData.map(x=>[...Data[0], ...x]);
    
    for(let i = CombinedData.length -1; i>=0; i--){
      if(CombinedData[i][2] == Data[0][2]){
        CombinedData[i].splice(2,1);
          
      }
    }
    console.log(CombinedData);

遍历数组数组并删除一个项目

Looping through an array of arrays and removing an item

javascript

office-scripts