How to Convert a JavaScript Array into a String?

One way to convert a JavaScript array into a string is to concatenate an empty string after it.

For instance, we can write:

const arr = ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday']
const str = arr + ""
console.log(str)

Then str is:

'Sunday,Monday,Tuesday,Wednesday,Thursday'

Use the Array.prototype.toString Method

Another way to convert a JavaScript array into a string is to use the JavaScript array toString method.

For example, we can write:

const arr = ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday']
const str = arr.toString();
console.log(str)

Then we get the same result as before.

Use the Array.prototype.join Method

Another way to convert a JavaScript array into a string is to use the JavaScript array join method.

We pass in a delimiter to join the strings in the array with and it’ll return a stirring with all the string array entries joined together.

For example, we can write:

const arr = ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday']
const str = arr.join(", ");
console.log(str)

And str is:

'Sunday, Monday, Tuesday, Wednesday, Thursday'