JavaScript concat() Method
 JavaScript Array Object
Definition and Usage
The concat() method is used to join two or more arrays.
This method does not change the existing arrays, it only returns a copy of the joined arrays.
Syntax
| array.concat(array2, array3, ..., arrayX); |
| Parameter |
Description |
| array2, array3, ..., arrayX |
Required. The arrays to be joined |
Browser Support
The concat() method is supported in all major browsers.
Examples
Example 1
Join two arrays:
<script type="text/javascript">
var parents = ["Jani", "Tove"];
var children = ["Cecilie", "Lone"];
var family = parents.concat(children);
document.write(family);
</script>
|
The output of the code above will be:
Try it yourself »
|
Example 2
Join three arrays:
<script type="text/javascript">
var parents = ["Jani", "Tove"];
var brothers = ["Stale", "Kai Jim", "Borge"];
var children = ["Cecilie", "Lone"];
var family = parents.concat(brothers, children);
document.write(family);
</script>
|
The output of the code above will be:
|
Jani,Tove,Stale,Kai Jim,Borge,Cecilie,Lone
|
Try it yourself »
|
JavaScript Array Object
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