> For the complete documentation index, see [llms.txt](https://dexiejs.typogram.co/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://dexiejs.typogram.co/dexie/dexie.override.md).

# Dexie.override()

Enables overriding existing functions and still be able to call the original function from within your overridden function.

#### Sample

The following sample shows how to log to console each time window\.open() is called.

```javascript
window.open = Dexie.override(window.open, function(origFunc) {
    return function (url) {
        console.log("Opening url: " + url);
        return origFunc.apply(this, arguments);
    }
});
```