JS将数组元素转换为该数组中的多个元素[重复]

使用 flatMap 具有 split :

const result = ["el1,el2", "el3"].flatMap(s => s.split(","));

console.log(result);

或者,首先连接到一个字符串:

const result = ["el1,el2", "el3"].join().split(",");

console.log(result);

flatMap 可以循环浏览每个项目,对其进行更改并将元素展平为一个数组

["el1,el2", "el3"].flatMap(v =>
  v.includes(',') // check if element includes ','
  ? v.split(',') // if true - split it into smaller arrays
  : v // if false - just return the string as it was
)