Question

我有一个数组

var arr = ["one","two","three","four"];

是否可以通过某些正则表达式将其转换为

"one","two","three","four"

结果不应该是整个字符串，而是逗号分隔的字符串。

任何建议???

Answer 1

function func(){
  var arr = ["one","two","three","four"];
  var result = "";
  for (var i = 0; i <= arr.length - 1; i++) {
  result += '"' + arr[i] + '",';
  }
  result = result.substring(0, result.length - 1);
  alert(result);
  }

Answer 2

您无法将其转换为以逗号分隔的字符串，只能转换为整个字符串。

使用join()：

var result = "\"" + array.join("\",\"") + "\"";

Answer 3

<!DOCTYPE html>
<html>
<body>

<p id="demo">Click the button to convert the array into a String.</p>

<button onclick="myFunction()">Try it</button>

<script>
function myFunction()
{
var fruits = ["Banana", "Orange", "Apple", "Mango"];
fruits.toString();
var x=document.getElementById("demo");
x.innerHTML=fruits;
}
</script>

</body>
</html>

Answer 4

这样做：

var arr = ["one","two","three","four"];
var str = '"' + arr.join('","') + '"';
console.log(str);

Demo

Answer 5

在for循环中，您可以单独使用值执行任何操作。

var arr = ["one","two","three","four"];
for (var i = 0; i <= arr.length; i++) {
    alert(arr[i]);
}

在javascript中使用数组

5 个答案: