Javascript 为什么这个二维数组过滤不起作用

发布于05月06日

我有一个2D数组，我试图对它进行过滤，但它没有经过过滤:

数据:

[
 ["Val #","Val #","Val #","Val #","Val #"],
 ["SO-000379-001A-047-1","SO-000379-001A-047-2","-","-","-"]
]

过滤线:

cads = cads.filter(e => e[1] != "-" || e[1] != '');

预期结果:

[
 ["Val #","Val #"],
 ["SO-000379-001A-047-1","SO-000379-001A-047-2"]
]

我到底错过了什么？

非常感谢.

推荐答案

Description

我相信您正在寻找的是一种基于第二行中的项过滤数组两行的方法.下面是一个如何做到这一点的例子.我稍微更改了您的数据，以显示它正在过滤第1行.

Script

function test() {
  try {
    let data = [ ["Val 1","Val 2","Val 3","Val 4","Val 5"],
                  ["SO-000379-001A-047-1","","SO-000379-001A-047-2","-","-"] ];
    let result = [[],[]];
    data[1].forEach( (item,i) => {
      if( (item != "-") && (item != "") ) {
        result[0].push(data[0][i]);
        result[1].push(data[1][i]);
      }
    });
    console.log(result);
  }
  catch(err) {
    console.log(err);
  }
}

Console.log

8:23:57 AM  Notice  Execution started
8:23:58 AM  Info    [ [ 'Val 1', 'Val 3' ],
  [ 'SO-000379-001A-047-1', 'SO-000379-001A-047-2' ] ]
8:23:57 AM  Notice  Execution completed