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ES6 - Array Method join()
join() method joins all the elements of an array into a string.
Syntax
array.join(separator);
Parameters
separator − Specifies a string to separate each element of the array. If omitted, the array elements are separated with a comma.
Return Value
Returns a string after joining all the array elements.
Example
var arr = new Array("First","Second","Third");
var str = arr.join();console.log("str : " + str );
var str = arr.join(", ");
console.log("str : " + str );
var str = arr.join(" + ");
console.log("str : " + str );
Output
str : First,Second,Third str : First, Second, Third str : First + Second + Third
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