JavaScript Array toLocaleString() Method

The Javascript array.toLocaleString() is an inbuilt function in JavaScript that is basically used to convert the elements of the given array to a string. 
Syntax:

arr.toLocaleString(locales, options)

Return values: It returns a string representing the elements of the array. 

JavaScript Version: ECMAScript 1 

Examples:  In this example, the variable number will be converted into a string using the array.toLocaleString() function.

Input: 
let name = "gfg";
let number = 123;
let A = [ name, number ];
Output:
"gfg, 123"

Here as we see that in input there are two variables containing elements but in output, these are converted into a string. 

Let’s see the JavaScript program on array.toLocaleString() function:

Example: In this example, we will see the conversion of a number and a date into strings using array.toLocaleString() function.

JavaScript

// taking inputs.
let name = "geeksforgeeks";
let number = 567;

// It will give current date and time.
let date = new Date();

// Here A is an array containing elements of above variables.
let A = [name, number, date];

// applying array.toLocaleString function.
let string = A.toLocaleString();

// printing string.
console.log(string);

Output:

"geeksforgeeks, 567, 2/18/2018, 10:41:20 AM"

Application:
The array.toLocaleString() function in JavaScript is used whenever we need to convert the elements of the given array to a string. 
Let’s see the JavaScript program on array.toLocaleString() function:

Example: In this example, we will see the conversion of an array and a decimal number into string values using array.toLocaleString() function. 

JavaScript

// taking inputs.
let name = ["Ram", "Sheeta", "Geeta"];
let number1 = 3.45;
let number2 = [23, 34, 54];

// Here A is an array containing elements of above variables.
let A = [name, number1, number2];

// applying array.toLocaleString function.
let string = A.toLocaleString();

// printing string.
console.log(string);

Output:

"Ram, Sheeta, Geeta, 3.45, 23, 34, 54"

We have a complete list of Javascript Array methods, to check those please go through this Javascript Array Complete reference article.

Supported Browser:

• Google Chrome 1 and above
• Internet Explorer 5.5 and above
• Firefox 1 and above
• Opera 4  and above
• Safari 1 and above

We have a Cheat Sheet on Javascript where we covered all the important topics of Javascript to check those please go through Javascript Cheat Sheet-A Basic guide to JavaScript.