| About
            Mature and complete async-await for user interfaces containing event-driven code, paired with isolate-based concurrency. A programming language optimized for building user interfaces with features such as sound null safety, the spread operator for expanding collections, and collection if for customizing UI for each platform. Write code using a flexible type system with rich static analysis and powerful, configurable tooling. Target the web with complete, mature, fast compilers for JavaScript. Run backend code supporting your app, written using a single programming language. This collection is not exhaustive—it’s just a brief introduction to the language for people who like to learn by example. You might also want to check out the language and library tours, or the Dart cheatsheet codelab.
             | About
            F# gives you simplicity and succinctness like Python with correctness, robustness and performance beyond C# or Java. F# is open source, cross-platform and free to use with professional tooling. F# is a JavaScript and .NET language for web, cloud, data-science, apps and more. Cloud computing relies on leveraging multiple integrated services. Using multiple services required a unique set of technologies and capabilities, and F# excels in this domain. With the recent rise of cloud solutions, it is becoming increasingly easy to deploy multiple services “in the cloud”, expanding what is possible both by storing large amounts of data and running heavy computations distributed across clusters of machines. 
             | About
            JavaScript is a scripting language and programming language for the web that enables developers to build dynamic elements on the web. Over 97% of the websites in the world use client-side JavaScript. JavaScript is one of the most important scripting languages on the web. Strings in JavaScript are contained within a pair of either single quotation marks '' or double quotation marks "". Both quotes represent Strings but be sure to choose one and STICK WITH IT. If you start with a single quote, you need to end with a single quote. There are pros and cons to using both IE single quotes tend to make it easier to write HTML within Javascript as you don’t have to escape the line with a double quote. Let’s say you’re trying to use quotation marks inside a string. You’ll need to use opposite quotation marks inside and outside of JavaScript single or double quotes. 
             | About
            Testim is the fastest path to resilient end-to-end tests—codeless, coded or both. Testim lets you create amazingly stable codeless tests that leverage our AI, but also the flexibility to export tests as code. You can leverage Testim’s modern JavaScript API and your IDE to debug, customize or refactor tests. Store them in your version control system to keep them in sync with branches and run tests on every commit. Run parallel, cross-browser tests on our test cloud or Selenium-compatible grids while integrating with your CI and dev tools to run smoke tests on pull requests, end-to-end tests on release candidates, or full regression suites on a schedule. Customers like Microsoft, Salesforce, NetApp, Wix, and JFrog run millions of tests on Testim each month. Learn more on our website and sign up for your free account!
             | |||
| 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
            
            
         | Platforms Supported
            
                Windows
            
            
         
            
                Mac
            
            
         
            
                Linux
            
            
         
            
                Cloud
            
            
         
            
                On-Premises
            
            
         
            
                iPhone
            
            
         
            
                iPad
            
            
         
            
                Android
            
            
         
            
                Chromebook
            
            
         | |||
| Audience
        Developers
         | Audience
        Programming Language solution for developers
         | Audience
        Web developers and anyone looking for a mobile solution for running and developing web content
         | Audience
        Agile development and test automation teams at midsized to large organizations with a focus on frequent releases of web applications.
         | |||
| Support
            
                Phone Support
            
            
         
            
                24/7 Live Support
            
            
         
            
                Online
            
            
         | 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
            
            
         | API
            
                Offers API
            
            
         | |||
| Screenshots and Videos | Screenshots and Videos | Screenshots and Videos | Screenshots and Videos | |||
| Pricing
        No information available.
        
        
     
            
                Free Version
            
            
         
            
                Free Trial
            
            
         | Pricing
        Free
        
     
            
                Free Version
            
            
         
            
                Free Trial
            
            
         | Pricing
        Free
        
     
            
                Free Version
            
            
         
            
                Free Trial
            
            
         | Pricing
        $20,000 a year
        
     
            
                Free Version
            
            
         
            
                Free Trial
            
            
         | |||
| 
Reviews/ | 
Reviews/ | 
Reviews/ | 
Reviews/ | |||
| Training
            
                Documentation
            
            
         
            
                Webinars
            
            
         
            
                Live Online
            
            
         
            
                In Person
            
            
         | Training
            
                Documentation
            
            
         
            
                Webinars
            
            
         
            
                Live Online
            
            
         
            
                In Person
            
            
         | Training
            
                Documentation
            
            
         
            
                Webinars
            
            
         
            
                Live Online
            
            
         
            
                In Person
            
            
         | Training
            
                Documentation
            
            
         
            
                Webinars
            
            
         
            
                Live Online
            
            
         
            
                In Person
            
            
         | |||
| Company InformationDart Language dart.dev/ | Company InformationF# fsharp.org | Company InformationJavaScript Founded: 1995 United States javascript.com | Company InformationTricentis Founded: 2007 United States www.testim.io | |||
| Alternatives | Alternatives | Alternatives | Alternatives | |||
|  | ||||||
|  | ||||||
|  |  | |||||
| Categories | Categories | Categories | Categories | |||
| API Testing Features
            
                Functional Testing
            
            
         
            
                Fuzz Testing
            
            
         
            
                Load Testing
            
            
         
            
                Penetration Testing
            
            
         
            
                Runtime and Error Detection
            
            
         
            
                Security Testing
            
            
         
            
                UI Testing
            
            
         
            
                Validation Testing
            
            
         Automated Testing Features
            
                Hierarchical View
            
            
         
            
                Move & Copy
            
            
         
            
                Parameterized Testing
            
            
         
            
                Requirements-Based Testing
            
            
         
            
                Security Testing
            
            
         
            
                Supports  Parallel Execution
            
            
         
            
                Test Script Reviews
            
            
         
            
                Unicode Compliance
            
            
         Functional Testing Features
            
                Automated Testing
            
            
         
            
                Interface Testing
            
            
         
            
                Regression Testing
            
            
         
            
                Reporting / Analytics
            
            
         
            
                Sanity Testing
            
            
         
            
                Smoke Testing
            
            
         
            
                System Testing
            
            
         
            
                Unit Testing
            
            
         Mobile App Testing Features
            
                Functional Testing
            
            
         
            
                Installation Testing
            
            
         
            
                Interruption Testing
            
            
         
            
                Memory Testing
            
            
         
            
                Performance Testing
            
            
         
            
                Usability Testing
            
            
         Software Testing Features
            
                Automated Testing
            
            
         
            
                Black-Box Testing
            
            
         
            
                Dynamic Testing
            
            
         
            
                Issue Tracking
            
            
         
            
                Manual Testing
            
            
         
            
                Quality Assurance Planning
            
            
         
            
                Reporting / Analytics
            
            
         
            
                Static Testing
            
            
         
            
                Test Case Management
            
            
         
            
                Variable Testing Methods
            
            
         
            
                White-Box Testing
            
            
         Test Management Features
            
                Automation Integration
            
            
         
            
                Collaboration Tools
            
            
         
            
                Pass/Fail Results Tabulation
            
            
         
            
                Reporting / Analytics
            
            
         
            
                Requirements Management
            
            
         
            
                Test Scheduling
            
            
         
            
                Test Tracking
            
            
         
            
                Time/Budget Tracking
            
            
         | ||||||
| Integrations
            
                
    16x Prompt
            
            
         
            
                
    Astro
            
            
         
            
                
    Boot.dev
            
            
         
            
                
    Captain
            
            
         
            
                
    Claude Sonnet 3.7
            
            
         
            
                
    Codacy
            
            
         
            
                
    Codeaid
            
            
         
            
                
    FastWebHost
            
            
         
            
                
    Flexprice
            
            
         
            
                
    GoLand
            
            
         | Integrations
            
                
    16x Prompt
            
            
         
            
                
    Astro
            
            
         
            
                
    Boot.dev
            
            
         
            
                
    Captain
            
            
         
            
                
    Claude Sonnet 3.7
            
            
         
            
                
    Codacy
            
            
         
            
                
    Codeaid
            
            
         
            
                
    FastWebHost
            
            
         
            
                
    Flexprice
            
            
         
            
                
    GoLand
            
            
         | Integrations
            
                
    16x Prompt
            
            
         
            
                
    Astro
            
            
         
            
                
    Boot.dev
            
            
         
            
                
    Captain
            
            
         
            
                
    Claude Sonnet 3.7
            
            
         
            
                
    Codacy
            
            
         
            
                
    Codeaid
            
            
         
            
                
    FastWebHost
            
            
         
            
                
    Flexprice
            
            
         
            
                
    GoLand
            
            
         | Integrations
            
                
    16x Prompt
            
            
         
            
                
    Astro
            
            
         
            
                
    Boot.dev
            
            
         
            
                
    Captain
            
            
         
            
                
    Claude Sonnet 3.7
            
            
         
            
                
    Codacy
            
            
         
            
                
    Codeaid
            
            
         
            
                
    FastWebHost
            
            
         
            
                
    Flexprice
            
            
         
            
                
    GoLand
            
            
         | |||
|  |  |  |  | 
 
         
         
         
        