javascript - 在保留括号的同时将数组转换为字符串

Question

I have a multidimensional array that looks like this:

var myArray =[[1,2,3,4,5], 
              [1,2,3,4,5], 
              [1,2,3,4,5], 
              [1,2,3,4,5]];

I wish to put its contents in a div (so that one can easily copy and paste).

However, when I do

var x = document.getElementById("result");
x.textContent = myArray;

I just get

1,2,3,4,5,1,2,3,4,5,1,2,3,4,5,1,2,3,4,5

Answer 1

Use JSON.stringify() :

var x = document.getElementById("result");
x.textContent = JSON.stringify( myArray );

Answer 2

You can either use JSON.stringify or custom joining like this

console.log("[[" + myArray.join("],[") + "]]");
# [[1,2,3,4,5],[1,2,3,4,5],[1,2,3,4,5],[1,2,3,4,5]]
console.log(JSON.stringify(myArray));
# [[1,2,3,4,5],[1,2,3,4,5],[1,2,3,4,5],[1,2,3,4,5]]