# JavaScript Array filter() Method
[ JavaScript Array Object](#)
### Example
Return all elements from the array _ages_ that are greater than 18:
```javascript
var ages = [32, 33, 16, 40];
function checkAdult(age) {
return age >= 18;
}
function myFunction() {
document.getElementById("demo").innerHTML = ages.filter(checkAdult);
}
The output will be:
32,33,40
[Try it Yourself »](#)
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## Definition and Usage
The `filter()` method creates a new array with all elements that pass the test implemented by the provided function.
**Note:** `filter()` does not execute the function for array elements without values.
**Note:** `filter()` does not change the original array.
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## Browser Support
The numbers in the table specify the first browser version that fully supports the method.
| Method | | | | | |
| --- | --- | --- | --- | --- | --- |
| filter() | Yes | 9 | 1.5 | Yes | Yes |
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## Syntax
```javascript
array.filter(function(currentValue,index,arr), thisValue)
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## Parameter Values
| Parameter | Description |
| --- | --- |
| _function(currentValue, index,arr)_ | Required. A function to run for each array element. Function parameters: | Parameter | Description | | --- | --- | | _currentValue_ | Required. The value of the current element | | _index_ | Optional. The index of the current element | | _arr_ | Optional. The array object the current element belongs to | |
| _thisValue_ | Optional. A value to be passed to the function to be used as its "this" value. If thisValue is omitted, "this" is "undefined" |
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## Technical Details
| Return Value: | An array with the elements that passed the test. If no elements pass the test, an empty array is returned. |
| --- |
| JavaScript Version: | 1.6 |
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## More Examples
### Example
Return all elements from the array ages that are greater than the value specified in the input field:
Minimum Age:
All elements greater than the specified array are?
var ages = [32, 33, 12, 40];
function checkAdult(age) {
return age >= document.getElementById("ageToCheck").value;
}
function myFunction() {
document.getElementById("demo").innerHTML = ages.filter(checkAdult);
}
[Try it Yourself »](#)
[ JavaScript Array Object](#)
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