Get Advice Icon

Need advice about which tool to choose?Ask the StackShare community!

Hack
Hack

79
50
+ 1
27
Perl
Perl

1.2K
454
+ 1
463
Add tool

Hack vs Perl: What are the differences?

Hack: A programming language for HHVM that interoperates seamlessly with PHP. Hack provides instantaneous type checking via a local server that watches the filesystem. It typically runs in less than 200 milliseconds, making it easy to integrate into your development workflow without introducing a noticeable delay; Perl: Highly capable, feature-rich programming language with over 26 years of development. Perl is a general-purpose programming language originally developed for text manipulation and now used for a wide range of tasks including system administration, web development, network programming, GUI development, and more.

Hack and Perl belong to "Languages" category of the tech stack.

"Interoperates seamlessly with php" is the top reason why over 5 developers like Hack, while over 62 developers mention "Lots of libraries" as the leading cause for choosing Perl.

Perl is an open source tool with 435 GitHub stars and 152 GitHub forks. Here's a link to Perl's open source repository on GitHub.

According to the StackShare community, Perl has a broader approval, being mentioned in 133 company stacks & 64 developers stacks; compared to Hack, which is listed in 8 company stacks and 3 developer stacks.

- No public GitHub repository available -

What is Hack?

Hack provides instantaneous type checking via a local server that watches the filesystem. It typically runs in less than 200 milliseconds, making it easy to integrate into your development workflow without introducing a noticeable delay.

What is Perl?

Perl is a general-purpose programming language originally developed for text manipulation and now used for a wide range of tasks including system administration, web development, network programming, GUI development, and more.
Get Advice Icon

Need advice about which tool to choose?Ask the StackShare community!

Why do developers choose Hack?
Why do developers choose Perl?

Sign up to add, upvote and see more prosMake informed product decisions

    Be the first to leave a con

    Sign up to add, upvote and see more consMake informed product decisions

    What companies use Hack?
    What companies use Perl?

    Sign up to get full access to all the companiesMake informed product decisions

    What tools integrate with Hack?
    What tools integrate with Perl?

    Sign up to get full access to all the tool integrationsMake informed product decisions

    What are some alternatives to Hack and Perl?
    PHP
    Fast, flexible and pragmatic, PHP powers everything from your blog to the most popular websites in the world.
    JavaScript
    JavaScript is most known as the scripting language for Web pages, but used in many non-browser environments as well such as node.js or Apache CouchDB. It is a prototype-based, multi-paradigm scripting language that is dynamic,and supports object-oriented, imperative, and functional programming styles.
    Python
    Python is a general purpose programming language created by Guido Van Rossum. Python is most praised for its elegant syntax and readable code, if you are just beginning your programming career python suits you best.
    Java
    Java is a programming language and computing platform first released by Sun Microsystems in 1995. There are lots of applications and websites that will not work unless you have Java installed, and more are created every day. Java is fast, secure, and reliable. From laptops to datacenters, game consoles to scientific supercomputers, cell phones to the Internet, Java is everywhere!
    HTML5
    HTML5 is a core technology markup language of the Internet used for structuring and presenting content for the World Wide Web. As of October 2014 this is the final and complete fifth revision of the HTML standard of the World Wide Web Consortium (W3C). The previous version, HTML 4, was standardised in 1997.
    See all alternatives
    Decisions about Hack and Perl
    StackShare Editors
    StackShare Editors
    HHVM (HipHop Virtual Machine)
    HHVM (HipHop Virtual Machine)
    Hack
    Hack
    PHP
    PHP

    Throughout 2016, Slack began migrating from PHP5 to Hack. They cite several well-known challenges inherent to PHP, including surprise type conversions, inconsistency around reference semantics, inconsistencies in the standard library, and the fact that “PHP tries very, very hard to keep the request running, even if it has done something deeply strange.”

    To overcome these challenges while maintaining the unique values of PHP, Slack turned to Hack, a gradual typing system for PHP. Hack runs on the HipHop Virtual Machine, or HHVM, an open source just-in-time (JIT) environment for PHP.

    See more
    Seth Ammons
    Seth Ammons
    Principal Software Developer at SendGrid · | 10 upvotes · 15.4K views
    atTwilio SendGridTwilio SendGrid
    Go
    Go
    Perl
    Perl
    Docker
    Docker
    #CodeCollaborationVersionControl
    #ContinuousIntegration

    In addition to our fancy Docker setup, we have captured and sanitized production logs for the behavior of our legacy Perl MTA, and we can test that the log output from the new Go version behaves the same way as the old version. These tests are set up to allow us to switch between the legacy and new version of the MTA and ensure that both systems behave in a legacy-compatible way. Not only can we ensure that we operate against a variety of issues we've seen over time from inboxes, but we know that the newest version of our MTA continues to cover all the same expected behaviors of the legacy version. #CodeCollaborationVersionControl #ContinuousIntegration

    See more
    StackShare Editors
    StackShare Editors
    Apache Thrift
    Apache Thrift
    Kotlin
    Kotlin
    Presto
    Presto
    HHVM (HipHop Virtual Machine)
    HHVM (HipHop Virtual Machine)
    gRPC
    gRPC
    Kubernetes
    Kubernetes
    Apache Spark
    Apache Spark
    Airflow
    Airflow
    Terraform
    Terraform
    Hadoop
    Hadoop
    Swift
    Swift
    Hack
    Hack
    Memcached
    Memcached
    Consul
    Consul
    Chef
    Chef
    Prometheus
    Prometheus

    Since the beginning, Cal Henderson has been the CTO of Slack. Earlier this year, he commented on a Quora question summarizing their current stack.

    Apps
    • Web: a mix of JavaScript/ES6 and React.
    • Desktop: And Electron to ship it as a desktop application.
    • Android: a mix of Java and Kotlin.
    • iOS: written in a mix of Objective C and Swift.
    Backend
    • The core application and the API written in PHP/Hack that runs on HHVM.
    • The data is stored in MySQL using Vitess.
    • Caching is done using Memcached and MCRouter.
    • The search service takes help from SolrCloud, with various Java services.
    • The messaging system uses WebSockets with many services in Java and Go.
    • Load balancing is done using HAproxy with Consul for configuration.
    • Most services talk to each other over gRPC,
    • Some Thrift and JSON-over-HTTP
    • Voice and video calling service was built in Elixir.
    Data warehouse
    • Built using open source tools including Presto, Spark, Airflow, Hadoop and Kafka.
    Etc
    See more
    Interest over time
    Reviews of Hack and Perl
    No reviews found
    How developers use Hack and Perl
    Avatar of Perljobs.Ru
    Perljobs.Ru uses PerlPerl

    The whole backend part (deployment and other scripts, business logic, web interface) is written in Perl.

    Весь бэкенд (скрипты деплоя и прочие, бизнес-логика, веб-интерфейс) написан на Perl.

    Avatar of John Galbraith
    John Galbraith uses PerlPerl

    I use Perl to rip through log files and compare them to some signature files I have created. When I get a match, it adds the bad guy to the list of shame in MySQL.

    Avatar of Alexander Karelas
    Alexander Karelas uses PerlPerl

    A very expressive language, lets you say the same thing in many different ways

    Avatar of rapt.fm
    rapt.fm uses PerlPerl

    We use perl with rex to control our distributed systems.

    Avatar of ssshake
    ssshake uses PerlPerl

    I use perl on some legacy applications.

    How much does Hack cost?
    How much does Perl cost?
    Pricing unavailable
    Pricing unavailable
    News about Hack
    More news