JavaScript Array toLocaleString() Method

The toLocaleString() method creates a string that represents the elements of an array. It converts the array elements into the string.

Syntax

Parameter

array: It is the given array or the source array.

Including this, there are two optional parameters also.

locales: It is a string that supports BCP 47 language tag, i.e., an IETF code that identifies human language.

Options: It is an object used for dates and numbers basically. They carry their configuration properties with them.

Return

It creates and returns a string that represents the array elements.

JavaScript toLocaleString() Example

Let's see the below examples to understand better:

Example1

Here's an example that shows the basic implementation of toLocaleString() method.

<html>
<head> <h5> Javascript Array Methods </h5> </head>
<body>
<script>
var arr=["ram","shyam","Heera"]; // an array is defined.
var str=arr.toLocaleString(); //using array toLocaleString() method
document.write("The array is represented in the string form as:  "+str); // This will  return the array elements in the form of string.
</script>
</body>
</html>

Test it Now

Output:

The output is shown below:

JavaScript Array toLocaleString() Method

In the output, the array is represented in the form of string.

Example2

Here's an example that implements date() method with toLocaleMethod().

<html>
<head> <h5> Javascript Array Methods </h5> </head>
<body>
<script>
const arr = [1, 'a', new Date('08 Jan 1997 17:12:00 UTC')];
const str = arr.toLocaleString('en', {timeZone: "UTC"}); //UTC is the Coordinated Universal Time.
document.write("The converted array elements in string form are: "+str);
</script>
</body>
</html>

Test it Now

Output:

Example3

Implementing the above example on the console.

<html>
<head> <h5> Javascript Array Methods </h5> </head>
<body>
<script>
const arr = [1, 'a', new Date('08 Jan 1997 17:12:00 UTC')];
const str = arr.toLocaleString('en', {timeZone: "UTC"}); //UTC is the Coordinated Universal Time.
console.log("The converted array elements in string form are: "+str); //on console
</script>
</body>
</html>

Test it Now

Output:

Example4

Implementing an example that combines the array elements and a value together into a new array.

<html>
<head> <h5> Javascript Array Methods </h5> </head>
<body>
<script>
var arr = ["John","Tom","Mary","Herry","Sheero" ]; //Defining an array
var val = 5; //Intializing the value of val.
var netarr = [ arr,val ];  //Creating a new array that combines both initialized variables.
var str = netarr.toLocaleString(); //Using the method
document.write("The netarr gets converted into string as: "+str); //Converting to string.
</script>
</body>
</html>

Test it Now

Output:

The output comes out as: