A splitter is the widget that shows two (or more) panes with a divider that you can drag. Commonly used for side bar navigation, see this example: https://codepen.io/Zodiase/pen/qmjyKL
A native splitter is one that is drawn by the browser itself, or even the OS. The only way to get that on the web is with iframes. Otherwise you have to resort to Javascript and manually handling mouse move events as in the example above.
Why do you want that? Same reasons we have `<input>` instead of having every website reimplement text boxes, sliders, checkboxes, etc. with canvas and mouse events.
Sorry I couldn't find an example of an actual iframes website because obviously nobody uses iframes any more.
It places related content or features of a program alongside or above one another in the same program window so you get all of what you need all right there on the one window. The separate spaces are often resizable, too, so you can fit the content that's important to you however you as the end-user want it. Thus why as another commenter here (izzieto) notes, it's used in almost any application you can think of.
A native splitter is one that is drawn by the browser itself, or even the OS. The only way to get that on the web is with iframes. Otherwise you have to resort to Javascript and manually handling mouse move events as in the example above.
Why do you want that? Same reasons we have `<input>` instead of having every website reimplement text boxes, sliders, checkboxes, etc. with canvas and mouse events.
Sorry I couldn't find an example of an actual iframes website because obviously nobody uses iframes any more.