Inverse of array.toString () Javascript

Question

Suppose I have an array like this:

var bestArray = ["Veni", "vidi", "vici"];

Now, I use the method toString () in order to traduce the array to a string like this:

var bestString = bestArray.toString(); // "Veni, vidi, vici"

Here, my code works fine. But, now I want to traduce bestString to an array. How can I achieve this?

Be careful to never have a `,` in one of your strings though. — Kaiido, Oct 27 '17 at 06:33
Possible duplicate of [Convert string with commas to array](https://stackoverflow.com/questions/13272406/convert-string-with-commas-to-array) — Jigar Shah, Oct 27 '17 at 06:37

score 3 · Accepted Answer · answered Oct 27 '17 at 06:30

You should use Array.join and Arrat.split instead:

var bestArray = ["Veni", "vidi", "vici"];

var joined = bestArray.join(",");
console.log(joined);

var split = joined.split(",");
console.log(split);

Note: Array.split will give you incorrect results if your source array has elements containing a comma (,).

So, if you do not plan to represent the array string to a GUI, you should use JSON.stringify and JSON.parse.

score 1 · Answer 2 · answered Oct 27 '17 at 06:30

Use .split(,)

Read more here: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/split

var bestArray = ["Veni", "vidi", "vici"];
var sArray = bestArray.toString();
console.log(sArray);

var arrayAgain = sArray.split(",");
console.log(arrayAgain);

score 1 · Answer 3 · answered Oct 27 '17 at 06:30

Split it by comma ,

["Veni", "vidi", "vici"].toString().split(",");

output is ["Veni", "vidi", "vici"] again.

Demo

["Veni", "vidi", "vici"].toString().split(","); 

var inputArr = ["Veni", "vidi", "vici"];

console.log( "toString ", inputArr.toString() ) ;

console.log( "back to array ", inputArr.toString().split(",") ) ;

Inverse of array.toString () Javascript

3 Answers3