Related Products
  | 
            
    ||||||
                
            
            
            About
            Less (which stands for Leaner Style Sheets) is a backwards-compatible language extension for CSS. This is the official documentation for Less, the language and Less.js, the JavaScript tool that converts your Less styles to CSS styles. Because Less looks just like CSS, learning it is a breeze. Less only makes a few convenient additions to the CSS language, which is one of the reasons it can be learned so quickly. Mixins are a way of including ("mixing in") a bunch of properties from one rule-set into another rule-set. Less gives you the ability to use nesting instead of, or in combination with cascading.
             
            
        
         | 
        
        
                
            
            
            About
            Roy is an experimental programming language that targets JavaScript. It tries to meld JavaScript semantics with some features common in static functional languages. 
             
            
        
         | 
        
        
                
            
            
            About
            A simple command-line tool to collect test coverage information from Dart VM tests. It is useful if you need to generate coverage reports locally during development.
             
            
        
         | 
        ||||
        
        Platforms Supported
            
                Windows
            
            
         
        
    
        
        
            
                Mac
            
            
         
        
    
        
        
            
                Linux
            
            
         
        
    
        
        
            
                Cloud
            
            
         
        
    
        
        
            
                On-Premises
            
            
         
        
    
        
        
            
                iPhone
            
            
         
        
    
        
        
            
                iPad
            
            
         
        
    
        
        
            
                Android
            
            
         
        
    
        
        
            
                Chromebook
            
            
         
        
    
         | 
        
        
        
        Platforms Supported
            
                Windows
            
            
         
        
    
        
        
            
                Mac
            
            
         
        
    
        
        
            
                Linux
            
            
         
        
    
        
        
            
                Cloud
            
            
         
        
    
        
        
            
                On-Premises
            
            
         
        
    
        
        
            
                iPhone
            
            
         
        
    
        
        
            
                iPad
            
            
         
        
    
        
        
            
                Android
            
            
         
        
    
        
        
            
                Chromebook
            
            
         
        
    
         | 
        
        
        
        Platforms Supported
            
                Windows
            
            
         
        
    
        
        
            
                Mac
            
            
         
        
    
        
        
            
                Linux
            
            
         
        
    
        
        
            
                Cloud
            
            
         
        
    
        
        
            
                On-Premises
            
            
         
        
    
        
        
            
                iPhone
            
            
         
        
    
        
        
            
                iPad
            
            
         
        
    
        
        
            
                Android
            
            
         
        
    
        
        
            
                Chromebook
            
            
         
        
    
         | 
        ||||
                
            
        
        Audience
        Programming Language solution for developers
         
        
    
         | 
        
        
                
            
        
        Audience
        Developers searching for a small functional language that compiles to JavaScript
         
        
    
         | 
        
        
                
            
        
        Audience
        Developers in need of a powerful Code Coverage solution
         
        
    
         | 
        ||||
                
            
        
        Support
            
                Phone Support
            
            
         
        
    
        
        
            
                24/7 Live Support
            
            
         
        
    
        
        
            
                Online
            
            
         
        
    
         | 
        
        
                
            
        
        Support
            
                Phone Support
            
            
         
        
    
        
        
            
                24/7 Live Support
            
            
         
        
    
        
        
            
                Online
            
            
         
        
    
         | 
        
        
                
            
        
        Support
            
                Phone Support
            
            
         
        
    
        
        
            
                24/7 Live Support
            
            
         
        
    
        
        
            
                Online
            
            
         
        
    
         | 
        ||||
                
            
        
        API
            
                Offers API
            
            
         
        
    
         | 
        
        
                
            
        
        API
            
                Offers API
            
            
         
        
    
         | 
        
        
                
            
        
        API
            
                Offers API
            
            
         
        
    
         | 
        ||||
                
            
        
        Screenshots and Videos | 
        
        
                
            
        
        Screenshots and Videos | 
        
        
                
            
        
        Screenshots and Videos | 
        ||||
                
            
        
        Pricing
        Free
        
     
    
    
        
        
            
                Free Version
            
            
         
        
    
        
        
            
                Free Trial
            
            
         
        
    
         | 
        
        
                
            
        
        Pricing
        Free
        
     
    
    
        
        
            
                Free Version
            
            
         
        
    
        
        
            
                Free Trial
            
            
         
        
    
         | 
        
        
                
            
        
        Pricing
        Free
        
     
    
    
        
        
            
                Free Version
            
            
         
        
    
        
        
            
                Free Trial
            
            
         
        
    
         | 
        ||||
                
            
        
    
        
Reviews/
         | 
        
        
                
            
        
    
        
Reviews/
         | 
        
        
                
            
        
    
        
Reviews/
         | 
        ||||
                
            
        
        Training
            
                Documentation
            
            
         
        
    
        
        
            
                Webinars
            
            
         
        
    
        
        
            
                Live Online
            
            
         
        
    
        
        
            
                In Person
            
            
         
        
    
         | 
        
        
                
            
        
        Training
            
                Documentation
            
            
         
        
    
        
        
            
                Webinars
            
            
         
        
    
        
        
            
                Live Online
            
            
         
        
    
        
        
            
                In Person
            
            
         
        
    
         | 
        
        
                
            
        
        Training
            
                Documentation
            
            
         
        
    
        
        
            
                Webinars
            
            
         
        
    
        
        
            
                Live Online
            
            
         
        
    
        
        
            
                In Person
            
            
         
        
    
         | 
        ||||
                
            
        
        Company InformationLess 
    
    
    lesscss.org 
         | 
        
        
                
            
        
        Company InformationRoy 
    
    
    roy.brianmckenna.org 
         | 
        
        
                
            
        
        Company Informationpub.dev 
    
    
    pub.dev/packages/test_coverage 
         | 
        ||||
                
            
            
    
        
        
        
            Alternatives | 
        
        
                
            
            
    
        
        
        
            Alternatives | 
        
        
                
            
            
    
        
        
        
            Alternatives | 
        ||||
| 
                
            
            
    
        
        
        
        
             | 
        ||||||
| 
                
            
            
    
        
        
        
        
             | 
        
        ||||||
| 
                
            
            
    
        
        
        
        
             | 
        
        
                
            
            
    
        
        
        
        
             | 
        
        |||||
| 
                
            
            
    
        
        
        
        
             | 
        
        
                
            
            
    
        
        
        
        
             | 
        |||||
                
            
        
    
        Categories | 
        
        
                
            
        
    
        Categories | 
        
        
                
            
        
    
        Categories | 
        ||||
                
            
        
    
        Integrations
            
                
    Codacy
            
            
         
        
    
        
        
            
                
    Codecov
            
            
         
        
    
        
        
            
                
    Coveralls
            
            
         
        
    
        
        
            
                
    Dart
            
            
         
        
    
        
        
            
                
    Dash
            
            
         
        
    
        
        
            
                
    Git
            
            
         
        
    
        
        
            
                
    GitHub
            
            
         
        
    
        
        
            
                
    JavaScript
            
            
         
        
    
        
        
            
                
    MyEclipse
            
            
         
        
    
        
        
            
                
    Nova
            
            
         
        
    
                
                    
    
        
        
        
    
        
        
        
    
        
        
        
    
        
        
        
    
        
        
        
    
        
        
        
    
        
        
        
    
        
        
        
    
                
             | 
        
        
                
            
        
    
        Integrations
            
                
    Codacy
            
            
         
        
    
        
        
            
                
    Codecov
            
            
         
        
    
        
        
            
                
    Coveralls
            
            
         
        
    
        
        
            
                
    Dart
            
            
         
        
    
        
        
            
                
    Dash
            
            
         
        
    
        
        
            
                
    Git
            
            
         
        
    
        
        
            
                
    GitHub
            
            
         
        
    
        
        
            
                
    JavaScript
            
            
         
        
    
        
        
            
                
    MyEclipse
            
            
         
        
    
        
        
            
                
    Nova
            
            
         
        
    
                
                    
    
        
        
        
    
        
        
        
    
        
        
        
    
        
        
        
    
        
        
        
    
        
        
        
    
        
        
        
    
        
        
        
    
                
             | 
        
        
                
            
        
    
        Integrations
            
                
    Codacy
            
            
         
        
    
        
        
            
                
    Codecov
            
            
         
        
    
        
        
            
                
    Coveralls
            
            
         
        
    
        
        
            
                
    Dart
            
            
         
        
    
        
        
            
                
    Dash
            
            
         
        
    
        
        
            
                
    Git
            
            
         
        
    
        
        
            
                
    GitHub
            
            
         
        
    
        
        
            
                
    JavaScript
            
            
         
        
    
        
        
            
                
    MyEclipse
            
            
         
        
    
        
        
            
                
    Nova
            
            
         
        
    
                
                    
    
        
        
        
    
        
        
        
    
        
        
        
    
        
        
        
    
        
        
        
    
        
        
        
    
        
        
        
    
        
        
        
    
                
             | 
        ||||
| 
                
            
        
    
     | 
        
        
                
            
        
    
     | 
        
        
                
            
        
    
     |