Below is the example of the Array join() method.
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Example:
<script>functionfunc() {vara = [ 1, 2, 3, 4, 5, 6 ];document.write(a.join('|'));}func();< /script> -
Output:
1|2|3|4|5|6
The arr.join() method is used to join the elements of an array into a string. The elements of the string will be separated by a specified separator and its default value is a comma(, ).
Syntax:
array.join(separator)
Parameters: This method accept single parameter as mentioned above and described below:
- separator: It is Optional i.e, it can be either used as parameter or not.Its default value is comma(, ).
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Example 1: In this example the function join() joins together the elements of the array into a string using ‘|’.
var a = [1, 2, 3, 4, 5, 6]; print(a.join('|'));Output:
1|2|3|4|5|6
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Example 2: In this example the function join() joins together the elements of the array into a string using ‘, ‘ since it is the default value.
var a = [1, 2, 3, 4, 5, 6]; print(a.join());
Output:
1, 2, 3, 4, 5, 6
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Example 3: In this example the function join() joins together the elements of the array into a string using ‘ ‘ (empty string).
var a = [1, 2, 3, 4, 5, 6]; print(a.join(''));Output:
123456
Return Value: It returns the String which contain the collection of array’s elements.
Below example illustrate the Array join() method in JavaScript:
Code for the above method is provided below:
Program 1:
<script> function func() {
var a = [ 1, 2, 3, 4, 5, 6 ];
document.write(a.join());
}
func();
</script> |
Output:
1, 2, 3, 4, 5, 6
Program 2:
<script> function func() {
var a = [ 1, 2, 3, 4, 5, 6 ];
document.write(a.join(''));
}
func();
</script> |
Output:
123456
Supported Browsers: The browsers supported by JavaScript Array join() method are listed below:
- Google Chrome 1.0 and above
- Microsoft Edge 12 and above
- Mozilla Firefox 1.0
- Safari 1 and above
- Opera 4 and above
