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In 1995, a Netscape employee created a hack in 10 days that now runs the Internet

A 10-Day Hack Changed the Web

In 1995, Brendan Eich created JavaScript in just ten days at Netscape. This simple scripting language now powers nearly all websites and various software applications.

  • JavaScript created in 1995
  • Developed by Brendan Eich
  • 98.9% of websites run JavaScript
  • Jointly released with Sun Microsystems
  • Initial version had quirks
  • JavaScript powers diverse applications

JavaScript’s creation story is quite the ride. In just ten days, Brendan Eich wrote the first working version at Netscape. Released publicly in 1995, JavaScript now runs on nearly every website, claiming a whopping 98.9% share in client-side coding. It’s everywhere—powering not only web pages but also server backends, mobile apps, and embedded systems. Surveys consistently place JavaScript among the top programming languages worldwide.

### Origins and Popularity of JavaScript
JavaScript emerged from Netscape’s quest for a lightweight scripting language that could add interactivity to web pages. Eich drew inspiration from various languages, notably Java for syntax, and incorporated ideas from Scheme and Self for the language’s core functionalities.

Originally, JavaScript faced competition and skepticism but gathered endorsements from 28 tech companies, including big names like Digital Equipment Corporation and Silicon Graphics. However, many of these companies have faded away, while JavaScript flourished, proving its staying power in the tech landscape.

### Development Challenges and Quirks
Although the ten-day sprint produced a working demo, it wasn’t designed perfectly. Over the next year, Netscape made many revisions, which sometimes led to issues that developers still note today. The rushed timeline resulted in quirks that would annoy programmers long after the initial release.

  • Initial demo, not fully developed
  • Continued tweaks after the first prototype
  • Permanent quirks still debated

### A Legacy That Outlasted Its Creators
JavaScript not only survives but thrives while companies that initially backed it have mostly vanished. The language’s adaptability has kept it relevant, evolving alongside technology.

Even as its creators and sponsors changed hands—like Sun Microsystems acquired by Oracle and Netscape by AOL—JavaScript remains at the forefront of web development, blending innovation with history.

Luca Fischer

Luca Fischer

Senior Technology Journalist

United States – New York Tech

Luca Fischer is a senior technology journalist with more than twelve years of professional experience specializing in artificial intelligence, cybersecurity, and consumer electronics. L. Fischer earned his M.S. in Computer Science from Columbia University in 2011, where he developed a strong foundation in data science and network security before transitioning into tech media. Throughout his career, Luca has been recognized for his clear, analytical approach to explaining complex technologies. His in-depth articles explore how AI innovations, privacy frameworks, and next-generation devices impact both industry and society. Luca’s work has appeared across leading digital publications, where he delivers detailed reviews, investigative reports, and feature analyses on major players such as Google, Microsoft, Nvidia, AMD, Intel, OpenAI, Anthropic, and Perplexity AI. Beyond writing, he mentors young journalists entering the AI-tech field and advocates for transparent, ethical technology communication. His goal is to make the future of technology understandable and responsible for everyone.

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Arstechnica

Arstechnica

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Ars Technica was launched in 1998 by Ken Fisher and Jon Stokes as a space where engineers, coders, and hard-core enthusiasts could find news that respected their intelligence. From the start it rejected shallow churn, instead publishing 5 000-word CPU micro-architecture briefs, line-by-line Linux kernel diffs, and forensic GPU teardowns that treat readers like fellow engineers rather than casual shoppers. Condé Nast acquired the site in 2008, yet the newsroom retained its autonomy, keeping the beige-and-black design ethos and the Latin tagline “Art of Technology.” Today its staff physicists, former network architects, and defunct-astronaut hopefuls explain quantum supremacy papers, dissect U.S. spectrum auctions, benchmark every new console, and still find time to live-blog Supreme Court tech policy arguments. The result is a community whose comment threads read like peer-review sessions: voltage curves are debated, errata are crowdsourced overnight, and authors routinely append “Update” paragraphs that credit readers for spotting a mis-stated opcode.

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FAQ

Why was JavaScript created?

To make web pages interactive for designers and beginners.

How did JavaScript influence tech?

It enabled interactive web experiences and powered various applications.

What challenges did early JavaScript face?

It had quirks and inconsistencies from rushed development.

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