javascript - Convert array to string while preserving brackets

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

JSON.stringify(myArray) Did you want it formatted exactly like the original? — cookie monster
– cookie monster, Commented Mar 30, 2014 at 16:14
Thanks, formatting was a non-issue, but it's good to know (as you mention below) how to do so if it was — Jet Blue
– Jet Blue, Commented Mar 30, 2014 at 16:49

Sirko · Accepted Answer · 2014-03-30 16:14:40Z

55

Use JSON.stringify():

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

answered Mar 30, 2014 at 16:14

Sirko

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thefourtheye · Accepted Answer · 2014-03-30 16:16:08Z

11

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]]

answered Mar 30, 2014 at 16:16

thefourtheye

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1 Comment

cookie monster Over a year ago

+1 This would be the way to go if he wanted it to be formatted just like the original syntax. Would just need to add a \n and a space. Probably faster too.

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