Call new theme based on condition

You want to know how to dynamically change the theme of a website or application based on a certain condition.

There are several ways to achieve this, depending on the programming language and framework you're using. Here are a few examples:

JavaScript and HTML/CSS

You can use JavaScript to detect a condition and then apply a new theme to the page. For example:

if (/* condition */) {
  document.body.className = 'new-theme';
}

In this example, the new-theme class is applied to the <body> element when the condition is true. You can then use CSS to define the styles for the new theme.

PHP and HTML/CSS

In PHP, you can use a conditional statement to determine which theme to use and then include the corresponding CSS file:

<?php
if (/* condition */) {
  $theme = 'new-theme';
} else {
  $theme = 'default-theme';
}
?>
<link rel="stylesheet" type="text/css" href="<?php echo $theme;?>.css">

Ruby on Rails

In Ruby on Rails, you can use a helper method to determine which theme to use and then render the corresponding layout:

def theme
  if /* condition */
    'new-theme'
  else
    'default-theme'
  end
end

Then, in your layout file, you can use the theme helper method to render the correct theme:

<!DOCTYPE html>
<html>
  <head>
    <%= stylesheet_link_tag theme %>
  </head>
  <body>
    <!-- content -->
  </body>
</html>

Other frameworks and languages

The approach will vary depending on the specific framework and language you're using. However, the general idea is to use a conditional statement to determine which theme to use and then apply the corresponding styles or layout.

NewsBreakers

Call new theme based on condition