How to apply same content to multiple html pages - html

I'm new to html and was wondering if there is a way to apply the same content to many html files at once.
For example, if I have many pages, but all those pages have an identical navigation side panel that contains links to all the other pages. Is there any way to change the contents of this side panel without changing it for each individual page?
i.e. is there a feature that allows me to make this navigation panel in a separate file, then tell all my pages to include this navigation file?
I know a css file can control the format of many html pages - is there an analogy to this that can control the content of many html pages?

You can use PHP to do that. Write the HTML code in PHP file, then add include statement in your HTML. This saves you from having to write same code again and again specially for navigation, etc.
PHP manual explains it.
Hope it helps.

You can write the common content in javascript file and include it in your html pages using script tag:
<script src="YOUR_FILE.js"></script>
You can use an online HTML to Javascript converter like this one to generate you javascript code.

Server-side includes or server-side programming languages (like PHP, for example), are often used to do that. All pages just include a shared common file, which contains the common content.

<?php
include(file with extension);
?>
You'd have to change your file extension that runs this code to DOT php

Related

VSCode HTML "pieces"

I use "pieces" to avoid confusion with the built-in "snippets" functionality.
The scenario is that I am rendering pages server-side in Nodejs, and as part of that I want to code portions of html in files that can be used to assemble an entire page. These are project-specific so the snippets functionality is really not useful here. Problem is if I write an html file that for example only has a section, VSCode tells me there is an error since that file does not start with <DOCTYPE>, etc.
The goal here is reusable pieces instead of duplicating for each page. E.g. define a header.html file that only defines the <header> section, and can then be inserted into each rendered page.
Has anyone done similar? How to tell VSCode to treat as HTML but without demanding a complete document and indicating an error?

confusion about files end with .thtml and what exactly are they

I was going over my company's code base, and I saw some file format I have never seen before. They are all ended with .thtml .
What exactly is the .thtml? I was told it is for template files, and every time I view it in vscode I need to choose a language at bottom right corner of the IDE (default was plain text). What is the use of template file in web development? Are they the substitutes of .html files?
HTML templates are HTML files enriched with variables, macros or other logic. They need to be preprocessed to ordinary HTML files before they can be viewed in a broswer. HTML templates are very useful when you want to create a lot of static HTML files sharing the same structure but with different contents.
There are several HTML templating engines out there, of which one happens to be named exactly thtml. (Of course this does not guarantee that it is the one your company uses.)

Render plain html in Master Page web form

I'm writing a web application in ASP.NET Web Forms. I have a Master Page and I will include some knockout templates inside. For some structural reasons I don't want to add that templates inside the Master Page code directly, so they will be in differents files.
Structure.
Masterpage.master
template1.template.html
template2.template.html
template3.template.html
I have done the same thing in MVC, but it was easy just rendering partials.
Is there anyway to do the same thing with a helper class or something?
I need that code in every page that includes that Master Page.
Create a user control (.ascx) file and move the required markup out of your HTML files and into the ASCX files. Then register the controls (at the page or web.config level) and use them in your master page.
See Also: When do you need .ascx files and how would you use them?

How do you work with include pages in jsp or php or the likes without getting IDE / Editor warnings for CSS classes?

If the CSS files for your site are referenced in the parent page, obviously you can use those CSS rules and classes in the sub-page or "included" page (like a jsp include or a php include). That will run as expected in the browser. BUT, if you are using an IDE or smart text editor of some kind (I'm using Netbeans), you will get warnings about the CSS elements in the sub-page (a .jspf for example) unless that file has a redundant reference to the css files. Is there a work-around for this? I don't want to have to reference the CSS files in both my jsp and my jspf (jsp include).
One technique I've used is to abandon jspf files in favour of a templating system where if you want to include something from a template, the template is actually a full page of which part is marked to be included. I actually use a home-grown template system for this, but my understanding is that thymeleaf (http://www.thymeleaf.org/) offers the same feature.

call single css menu in multiple html pages

I'm in the process of creating a website.
I have a menu bar which is common for all the pages. I want to call the HTML page which contains the menu bar from any page within my site.
Is there any syntax to include HTML files so that I can solve my issue.
If so how to do it?
You need to use php extension for you files instead of html and call your header with
<?php include_once('header.php'); ?>
where you want header to be displayed
If you are working on local machine install xampp or you will not be able to see your website because php is server side scripting language
** Answer from other questions **
You are describing server side includes.
Server Side Includes are useful for including a common piece of code throughout a site, such as a page header, a page footer and a navigation menu.
Example of usage:
<!--#include virtual="../quote.txt" -->
This will add the text of quote.txt to the page - if you add it to multiple pages, you can make your change in this one file and it will show on all pages in was included in.
Different web servers have different support and additional features for these, so you need to check the documentation for yours.
Many websites that need dynamic features (like fetching data from a database) will use some kind of server side scripting language for this kind of functionality - examples include PHP, Perl, ASP.NET, JSP and many more.