File html include

Then, create a p tag and write the text This is from index. Create another HTML file named lake. In index. Select the id anotherContent and call the load method with lake. When we run the file index. However, we should run the file index. Cross-Origin Request will be blocked when we include another file lake. To eliminate this problem, we can create an HTTP server with the following python command from the directory of the index.

You then add some code to the rest of your pages showing them where this include file is, in place of actually writing the HTML code into each of those pages.

When your server the computer hosting your website that sends pages to your viewers is asked for a page containing SSI , it first parses this page for instructions, finds the files it needs to make up the page, puts them all together and finally sends the fully-constructed page back to the reader.

If at any time you want to update your navigation bar, all you need to change is that one navigation. Along with the obvious benefits to code maintainability , this also makes the source code of your main pages much more readable, as common elements are abstracted out into a few short files. Before you can use Server Side Includes, your server will need to be configured to support them. Any file that you want to be parsed for directives will need to have the. Most Apache and otherwise servers have been configured to treat files of this type differently, and check them for directives that need to be carried out before they are sent to the reader.

Once your filenames end in. This will also allow you to enable SSI throughout a site if you put this. To get around this, upload your file as normal text and rename it on the server. Of course you could just as easily make all your. Just be aware that this may well cause a serious strain on your server. If you're creating a theme, library, or just want to segment your app into logical chunks, giving users a single URL is compelling. Heck, you could even deliver an entire app via an import.

Think about that for a second. A real-world example is Bootstrap. Bootstrap is comprised of individual files bootstrap. It allows them buy in to the parts of the framework they want to use. Imports make a ton of sense for something like Bootstrap. I present to you, the future of loading Bootstrap:. They don't need to fuss with the scatter-shot of files. Instead, the entirety of Bootstrap is managed and wrapped up in an import, bootstrap. Imports try to load immediately.

Notice the event handlers are defined before the import is loaded on the page. The browser tries to load the import as soon as it encounters the tag. If the functions don't exist yet, you'll get console errors for undefined function names. Including an import on a page doesn't mean "plop the content of that file here". It means "parser, go off an fetch this document so I can use it". To actually use the content, you have to take action and write script. A critical aha! In fact, the content of an import is called an import document.

Imports are not in the main document. They're satellite to it. However, your import can still act on the main page even though the main document reigns supreme. Notice what's going on here. The script inside the import references the imported document document. Pretty gnarly if you ask me. In particular, it's an ideal way to distribute Web Components. When these technologies are used in tandem, imports become a include for Web Components. That is, scripts don't run until the template is added to the DOM.

Call it The first shows a basic custom element that registers itself inside the import. The best part about registering custom elements inside an HTML import is that the the importer simply declares your element on their page. No wiring needed. It can be useful for one import to include another.

For example, if you want to reuse or extend another component, use an import to load the other element s. Below is a real example from Polymer. You won't break your users thanks to imports and web components. We all know that loading JQuery more than once per page causes errors.