{% include anchor.html edit="true" title="Default settings" hash="defaults" %} If you find yourself using the same constructor options repeatedly, you can simplify your code with `PouchDB.defaults()`: {% highlight js %} PouchDB.defaults({ option1: 'foo', option2: 'value' }); {% endhighlight %} The returned object is a constructor function that works the same as `PouchDB`, except that whenever you invoke it (e.g. with `new`), the given options will be passed in by default. #### Example Usage: {% highlight js %} var MyMemPouch = PouchDB.defaults({ db: require('memdown') }); // MemDOWN-backed Pouch (in Node) var MyMemPouch = new MyMemPouch('dbname'); var MyPrefixedPouch = PouchDB.defaults({ prefix: '/path/to/my/db/' }); // db will be named '/path/to/my/db/dbname', useful for LevelDB var myPrefixedPouch = new MyPrefixedPouch('dbname'); {% endhighlight %} Note the special constructor option `prefix`, which appends a prefix to the database name and can be helpful for URL-based or file-based LevelDOWN path names. All [constructor options](#create_database) are supported. Default options can still be overriden individually.