'HTML tag to prevent HTML tags to be executed?

Basic question which I thought of asking on Superuser, but it is a programming question I think. I just started learning HTML, so please bear with me.

How can I prevent a program from interpreting an HTML tag / syntax? For example, I want to write a flash card like this:

The html code for < is &lt;

I would like a solution that would work for any or most syntax, not just for <.

How can I enter the syntax (without any space) to make sure the code isn't interpreted?

htmlxhtml


Solution 1:[1]

You are going to have to do it manually.

Here you have the full encoding table. The most commonly used codes are:

Character  Entity Number  Entity Name  Description
"          &#34;          &quot;       quotation mark
'          &#39;          &apos;       apostrophe (does not work in IE)
&          &#38;          &amp;        ampersand
<          &#60;          &lt;         less-than
>          &#62;          &gt;         greater-than

Solution 2:[2]

This:

The html code for &lt; is &amp;lt;

Renders as:

The html code for < is &lt;

The basic strategy is to escape the & as &amp;

Solution 3:[3]

In this case, you DON'T need to encode it. Try this one:

<xmp> html < &lt; </xmp>

I'm not sure about cross browsers support, but works on IE7,FF3,Chrome3

Solution 4:[4]

I suppose you don't want the entity to be rendered? If you want to display &lt; you'll have to use the entity for the ampersand: &amp;.

Solution 5:[5]

The html code for < is &lt;

That is, type &lt; is &amp;lt;.

Solution 6:[6]

If you have access to server side scripting capabilities, you might be able to use utility functions of that platform. For example, in PHP you might use the htmlentities function to your advantage:

echo htmlentities("The html code for < is &lt;");

Solution 7:[7]

You could use a <pre> &lt; </pre> sequence

Solution 8:[8]

You need to encode it. For example, '<' = '&lt;'

Here is the list.

So in your case it will end up like this:

The html code for &lt; is &amp; l t ;

Solution 9:[9]

<textarea readonly rows="2" cols="50" style="border:none; color:lightGray; background-color:black;">
<<line1>>
<<line2>>
</textarea>

is the only supported option . but its not enabled neither here neither on GitHub .

i'm 5min with HTML, so also would appreciate anyone enhancing it with dynamic size, achieved trough the tag's HTML/CSS attributes, or, if its not possible, trough a small embed Java Script .

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1
Solution 2 Daniel Martin
Solution 3
Solution 4 Fabian Vilers
Solution 5 Sinan Ünür
Solution 6 Daan
Solution 7 rsp
Solution 8
Solution 9 irvnriir

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