JavaScript Array join() Method
The JavaScript Array join() Method is used to join the elements of an array into a string. The elements of the string will be separated by a specified separator and its default value is a comma(,).
Syntax
array.join(separator);Parameters
This method accepts a single parameter as mentioned above and described below:
- separator: It is Optional i.e., it can be either used as a parameter or not. Its default value is a comma(, ).
Example 1: In this example, the function join() joins together the elements of the array into a string using ‘|’.
function func() {
let a = [1, 2, 3, 4, 5, 6];
console.log(a.join('|'));
}
func();
Output
1|2|3|4|5|6
Example 2: In this example, the function join() joins together the elements of the array into a string using ‘, ‘ since it is the default value.
let a = [1, 2, 3, 4, 5, 6];
console.log(a.join());
Output
1,2,3,4,5,6
Example 3: In this example, the function join() joins together the elements of the array into a string using ‘ ‘ (empty string).
let a = [1, 2, 3, 4, 5, 6];
console.log(a.join(''));
Output
123456
We have a complete list of JavaScript Array methods, to check those please go through this Javascript Array Complete reference article.
