What are the implications of the primary difference between markup and programming languages for web developers in terms of code complexity?
Markup language gives display information in their codes because they are less complex, while programming languages are very complex because they give instructions to the information given by the markup language.
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What are the implications in terms of the knowledge and skills required to create markup code vs. programming code?
Markup code requires very little knowledge and skill to understand. It requires two to three hours of study to understand and practice it. Programming code requires a lot of research, knowledge, and skill in order to use it. This takes a lot of hours of study and practice.
What’s the important difference between a markup language (such as HTML) and a programming language (such as JavaScript)?
A markup language is a scripting tool used to develop web pages; it defines the appearance of images and texts on the web page. A programming language is used to create full applications or small applications (applets) that run on the browser. (Hilton, 2011)
Look at the HTML code below then list the line numbers of just those HTML tags that are required to create a web page:
<! DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="MyStyle.css">
</head>
<body>
<nav>
<a href="GroceryHome.html">Home</a> |
<a href="Products.html">Products</a> |
<a href="AboutUs.html">About Us</a> |
<a href="Contact.html">Contact</a>
</nav>
<header>
<h1> My Contact Page</h1>
</header>
<article>
Thank you for your interest in our grocery store. We offer delivery or call-ahead pickup services. Please provide your contact information, and indicate your family's food preferences.
</article> <p>
</body>
</html>
<! DOCTYPE html>
<html>
<head>
</head>
<body>
<nav>
</nav>
<header>
<article>
</article> <p>
</body>
</html>
All web pages must be in what file format?
. html> or .htm> is the file format that is used in all web pages. All files that have this extension can be opened.
Why do web programmers use CSS? In other words, what can programmers do with CSS that they cannot do with HTML alone (or that they can do more easily with CSS than with HTML alone)?
Cascading Style Sheets (CSS) gives control over formatting and layout of your document. It selects the elements that are to be styled and values are set to the different element properties. Backgrounds,font-size, colors, and styles can be changed in CSS.
Why do web programmers use JavaScript? In other words, what can programmers add to a web page using JavaScript that they cannot add using HTML or CSS alone?
JavaScript is used to bring life to the webpage. It is used to provide drag and drop functionality, validation of data, animate elements on the page, change styles and many more.
Different browsers provide different levels of support for HTML, CSS, and JavaScript. In addition, users can turn off support for JavaScript in their browsers. What are the implications of this multi-level support for web developers? In other words, if web programmers cannot be sure that their site visitors will all have support for HTML5 or JavaScript, how does that knowledge affect the way programmers should design websites?
This knowledge enables the programmer to add tags that display a warning message to the user using <noscript> tags. The tag can be added to the javascript block. If the user's browser does not support JavaScript the message <noscript> is displayed on the screen.
References
Hilton, G. (2011). What is the difference between HTML and JAVA ? Webicy . Retrieved 1 December 2017, from http://www.webicy.com/programming/55938-what-difference-between-html-java.html
Kyrnin, J. (2017). Common File Types and File Extensions . ThoughtCo . Retrieved 1 December 2017, from https://www.thoughtco.com/types-of-web-files-3466474
