Array.prototype.join

Adds all the elements of an array into a string, separated by the specified separator string.

Syntax

join(separator);

Parameters

• separator

  A string used to separate one element of the array from the next in the resulting string. If omitted, the array elements are separated with a comma.

Return value

A string.

Example

[1, 2, 3].join()

"1,2,3"

[1, 2, 3].join(', ')

"1, 2, 3"

["tea", "coffee", "juice"].join(' or ')

"tea or coffee or juice"