LESS - Variable Lazy Loading Scope

Description

If you define a variable two times, the last definition of the variable from the current scope is searched and used. This method is similar to CSS itself where the value is extracted from the last property inside a definition.

Example

The following example demonstrates the use of lazy loading of variable in different scope in the LESS file −

<html>
   <head>
      <link rel = "stylesheet" href = "style.css" type = "text/css" />
      <title>LESS Lazy Loading in Different Scope</title>
   </head>

   <body>
      <div class = "myclass">
         <p>Welcome to Tutorialspoint</p>
         <p class="para1">LESS is a CSS pre-processor.</p>
      </div>
   </body>
</html>

Now create the file style.less.

style.less

@var: 10;
.myclass {
   @var: 50;
   .para1 {
      @var: 30;
      font-size: @var;
      @var: 20;
   }
   font-size : @var;
}

You can compile the style.less to style.css by using the following command −

lessc style.less style.css

Execute the above command; it will create the style.css file automatically with the following code −

style.css

.myclass {
   font-size: 50;
}

.myclass .para1 {
   font-size: 20;
}

Output

Follow these steps to see how the above code works −

Save the above html code in the less_lazy_loading_scope.html file.
Open this HTML file in a browser, the following output will get displayed.

less_variables.htm