> For the complete documentation index, see [llms.txt](https://edrus.gitbook.io/mt-it/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://edrus.gitbook.io/mt-it/2nd-month/week-6/dom-document-object-model/working-with-attributes/hasattribute.md).

# hasAttribute()

### Introduction to the JavaScript `hasAttribute()` method

To check an element has a specified attribute or not, you use the `hasAttribute()` method:

```javascript
let result = element.hasAttribute(name);
Code language: JavaScript (javascript)
```

#### Parameters

The `hasAttribute()` method accepts an argument that specifies the name of the attribute that you want to check.

#### Return value

The `hasAttribute()` returns a Boolean value that indicates if the element has the specified attribute.

If the element contains an attribute, the `hasAttribute()` returns true; otherwise, it returns `false`.

### JavaScript `hasAttribute()` example

See the following example:

```xml
<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>JS hasAttribute() Demo</title>
</head>
<body>

    <button id="btnSend" disabled>Send</button>

    <script>
        let btn = document.querySelector('#btnSend');
        if (btn) {
            let disabled = btn.hasAttribute('disabled');
            console.log(disabled);
        }
    </script>
</body>
</html>
Code language: HTML, XML (xml)
```

Output:

```javascript
true
Code language: JavaScript (javascript)
```

How it works:

* Select the button with the id btnSend by using the [`querySelector()`](https://www.javascripttutorial.net/javascript-dom/javascript-queryselector/) method.
* Check if the button has the disabled attribute by calling the `hasAttribute()` method on the button element.

### Summary

* Use the `hasAttribute()` method to check if an element contains a specified attribute.

<br>