javascript - 将数组中的字符串分解为子数组

Question

进行 DNA 挑战，如此接近但显然误解了 prototype.split("")。将这些字符串 ["AC", "CA", "TA"] 转换为子数组的最佳方法是什么？ [["A","C"]["C","A"]["T","A"]]

function pairElement(str) {
  //break into array
  var arr = str.split("");

  //add new letter (could be refactored as switch)
  for (i = 0; i < arr.length; i++) {
    if (arr[i] == "G") {
      arr[i] += "C";
    } else if (arr[i] == "C") {
      arr[i] += "G";
    } else if (arr[i] == "T") {
      arr[i] += "A";
    } else if (arr[i] == "A") {
      arr[i] += "T";
    }
  }

  //break into arrays again
  //this is how I'm trying to use.split to break it up. Doesn't work.
  var broken = [];
  for (x = 0; x < arr.length; x++) {
    broken += arr[x].split("");
  }

  //return
  return arr;
}

console.log(pairElement("GCG"));

Answer 1

你可以使用.map和 split它们由 ""

var o =  ["AC", "CA", "TA"];

var s =  o.map(e=> e.split(""));

console.log(s)