Where in the HTML file should Jquery and Bootstrap be placed?

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Curious at to where I place my Jquery and Bootstrap files. They recommend that you always place at the bottom for performance purposes yet when I check sites that use Jquery/Bootstrap the majority of users always place them at the top. Also should I be loading my own JavaScript files before or after the bootstrap/Jquery files?

I take it that I load the my own css file first before the bootstrap file if I want to override some of their styling, is this correct and does the same apply to javascript files?

Introduction � Bootstrap, Easy to use: Anybody with just basic knowledge of HTML and CSS can start using Bootstrap Also, most CDN's will make sure that once a user requests a file from it, it will be However, if you just use the CSS part of Bootstrap, you don' t need jQuery. of the page, along with the lang attribute and the correct character set:. Even if you are using the downloaded bootstrap file, you have to include jquery.min.js and popper.min.js before loading bootstrap.min.js 3. Using package managers

Bottom is best to place all your script references at the end of the page before </body>.It should look like below in normal page.

<html>
 <head>
   <link href="path/to/file.css" rel="stylesheet" type="text/css">
 </head>
 <body>
   <script src="path/to/file.js" type="text/javascript"></script>
 </body>
</html>

Although in some cases it may be necessary to load JavaScript before page load if any of your function need to access JavaScript before Page Load.Specially if you are working with JQuery UI And Bootstrap.

You can decorate your script tags with the defer attribute so that the browser knows to download your scripts after the HTML has been downloaded:

<script src="Jquery.js" type="text/javascript" defer="defer"></script>

or

  <script src="demo_async.js" async></script> 

When present, it specifies that the script will be executed asynchronously as soon as it is available.

http://www.w3schools.com/tags/att_script_async.asp

If you need script to access in page for use then script need to available before using it. Although it need to be sure the browser support defer="defer". Async is supported by all major browsers.

Javascript by default block any other parallel downloads. So if you have many tags in the head, calling on multiple external scripts will block the HTML from loading, thus greeting the user with a blank white screen, because no other content on your page will load until the java script files have completely loaded. Another advantage to load script in bottom is that any error caused by external script will not stop the page from Loading to browser.

Style css need to present in top <Head> to access in page.

Bootstrap Get Started, Both versions can be downloaded from jQuery.com. The jQuery library is a single JavaScript file, and you reference it with the HTML <script> tag (notice that the <� Dear Ryan, I cannot solve my issue. I created a navbar with some buttons. One of this button has bootstrap tooltip specs. However, the style and positioning inherited by the tooltip comes from a jquery.ui.css file stored into /pubic_html ; therefore I downloaded the proper bootstrap css and min.css and uploaded in the same directory.

It really depends on what you want to achieve, but generally JS is placed at the bottom and CSS in your head section. Make sure that jquery library loads before Bootstrap's JS library and your custom css file loads after Bootstrap's CSS, so it will override. You can load Bootstrap's CSS from their CND (or others, like cloudflare - for example http://cdnjs.com/libraries).

Make sure you minify all that & activate compression and you shouldn't experience any performance issues.

Advanced technics imply using the most important part of your CSS in your head area, then send the rest of the CSS in the bottom area. Or have your whole static content (CSS + JS) hosted on a CDN.

jQuery Get Started, You can place any number of scripts in an HTML document. Scripts can be placed in the <body> , or in the <head> section of an HTML page, or in both. JavaScript in <head> or <body>. You can place any number of scripts in an HTML document. Scripts can be placed in the <body>, or in the <head> section of an HTML page, or in both.

JavaScript Where To, Easy to use: Anybody with just basic knowledge of HTML and CSS can start using Also, most CDN's will make sure that once a user requests a file from it, it will be Bootstrap 4 use jQuery and Popper.js for JavaScript components (like modals, of the page, along with the lang attribute and the correct character set: <! HTML Character Sets HTML ASCII HTML ANSI HTML Windows-1252 HTML ISO-8859-1 HTML Symbols HTML UTF-8 Exercises HTML Exercises CSS Exercises JavaScript Exercises SQL Exercises PHP Exercises Python Exercises jQuery Exercises Bootstrap Exercises Java Exercises C++ Exercises C# Exercises

Bootstrap 4 Get Started, Bootstrap is a popular CSS framework of prewritten stylesheets designed to CDNs, or content delivery networks, are code files hosted on the web that you can include in your project. Using a CDN is the fastest way to get set up with Bootstrap. Simply include the code above in your HTML head element and you will be� Topic: Where should the MDB js files be placed so the MDB.Select will work dharris909@gmail.com pro premium asked 11 months ago 0 0

Bootstrap: Using It In a Project, Learn how to use Bootstrap in your project and how to convert a simple HTML In this tutorial you will learn how to create a web page using Bootstrap JS files, as well as other JavaScript dependencies like jQuery and Popper.js via CDN. Tip: Please note that Bootstrap's JavaScript plugins require jQuery to be included . Now that Bower has copied the client support packages needed by the application, you can test that an HTML page can use the deployed jQuery and Bootstrap functionality. Right-click wwwroot and select Add > New Item > HTML Page. Name the page Index.html. Add the CSS and JavaScript references.

Comments
  • To override bootstrap styling, you should place your css after bootstrap. So I don't understand..
  • No you would want to load you custom css and javascript AFTER the frameworks (jQuery/bootstrap) you import
  • Ohhhhh, thank you very much.
  • if you adress this: I take it that i load the my own css file first before the bootstrap file if i want to override some of their styling, is this correct and does the same apply to javascript files? then this answer would be complete
  • This is true, but please also explain why this is best practice. The OP asks not only how to do it best but also why a certain solution is the preferred one.
  • @connexo most frameworks such as jQM are happy to be placed in the head of a HTML document. Bootstrap does not. very good question you asked, why?
  • Thank you very much for the template. I get confused when people use all different methods and advise differently. This helped me greatly :)
  • @Mlbliner all you have to do is visit the getting started page in boostrap and click on any of the demos to view and then the page source. They all have bootstrap js files at the bottom of the document. getbootstrap.com/getting-started
  • The "defer" attribute has mixed support. This may or may not be OK depending on the range of web clients you need to support. See caniuse.com/#feat=script-defer