JavaScript Join () method

Definition and usage

The join () method is used to put all the elements in an array into a string.

The elements are delimited by the specified delimiter.

Grammar

Arrayobject.join (separator)

Parameters	Description
Separator	Optional. Specifies the delimiter to use. If this argument is omitted, a comma is used as the delimiter.

return value

Returns a string. The string is generated by converting each element of Arrayobject to a string and then connecting the strings to insert a separator string between the two elements.

Example 1

In this case, we'll create an array and put all of its elements into a string:

<script type= "Text/javascript" >varnew Array (3) arr[0] = "George"arr[1] = " John "arr[2] =" Thomas "document.write (Arr.join ())</script>

Output:

George,john,thomas

Example 2

In this case, we will use separators to separate the elements in the array:

<script type= "Text/javascript" >varnew Array (3) arr[0] = "George"arr[1] = " John "arr[2" = "Thomas"document.write (Arr.join (".") ))</script>

Output:

George.John.Thomas

JavaScript Join () method