Question

我正在处理数据，我需要一个在数据处理完成后将转置的函数。现在数据看起来像这样。

var string ='"EMAIL","PHONE","ADDRESS","AREA"
"something@gmail.com","1 123 456","Some St. 1","700"
"something1@gmail.com","1 123 789","Some St. 2","800"
"something2@gmail.com","1 123 654","Some St. 3","900"
"something3@gmail.com","1 123 987","Some St. 4","1000" ';

我需要一个将这些数据转换为以下内容的函数：

var string = '"EMAIL","something@gmail.com","something1@gmail.com","something2@gmail.com","something3@gmail.com"
"PHONE","1 123 456","1 123 789","1 123 654","1 123 987"
"ADDRESS","Some St. 1","Some St. 2","Some St. 3","Some St. 4"
"AREA","700","800","900","1000"';

Answer 1

将数据作为字符串转换为2D数组（或表，矩阵等），然后可以transpose the matrix并将其连接回字符串：

 const transpose = array => array[0].map((col, i) => array.map(row => row[i]));

  const result = transpose(
    data.split("\n").map(row => row.split(","))
  ).map(row => row.join(",")).join("\n");

JavaScript转置数据

1 个答案: