Returns a string value consisting of all the elements of an array concatenated together and separated by the specified separator character.

arrayObj.join(separator) 

Arguments

arrayObj

Required. An Array object.

separator

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

Remarks

If any element of the array is undefined or null, it is treated as an empty string.

Example

The following example illustrates the use of the join method.

function JoinDemo(){
   var a, b;
   a = new Array(0,1,2,3,4);
   b = a.join("-");
   return(b);
}

Requirements

Version 2

See Also

Array Object Methods | String Object

Applies To: Array Object