The join() method in JavaScript is used to put all the elements in the array into a string, which is separated by a specified delimiter.
JavaScript join() method
Function:join() method is used to put all elements in the array into a string. Elements are separated by the specified delimiter.
Syntax:
arrayObject.join(separator)
separator: Specify the separator to use; can be omitted, if omitted, a comma is used as the separator.
Return value: Returns a string. The string is generated by converting each element of the arrayObject to a string and then concatenating the strings by a delimiter (a delimiter is inserted between the two elements).
JavaScript join() method usage example
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>php中文网(php.cn)</title>
</head>
<body>
<script type="text/javascript">
var arr = new Array(3)
arr[0] = "George"
arr[1] = "John"
arr[2] = "Thomas"
console.log(arr.join());
console.log(arr.join("-"));
</script>
</body>
</html>Rendering:
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