ECMAScript 2026 Approved: Seven New JavaScript Features Cut Common Workarounds

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Ecma International officially approved the 17th edition of the ECMAScript specification on June 30, 2026. The release introduces seven practical language-level additions, including Array.fromAsync(), Map.prototype.getOrInsert(), Iterator.concat(), and Error.isError(). Other additions include Math.sumPrecise(), native Base64 and hex support for Uint8Array, and improved JSON source text access. These features are designed to replace repetitive manual patterns that developers have long written by hand across frontend apps, Node.js services, and data pipelines. No new framework or architectural changes are needed to adopt them, though developers should verify runtime and browser support before production use.

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Developer builds browser page displaying opening lines of classic literary works

A developer has launched a personal project called 'Opening Lines of Famous Literary Works', showcasing the first lines of well-known books as a browser start page. The idea had been in development for several years, stemming from the creator's habit of collecting notable literary opening lines. After experimenting with various visual styles, the developer settled on a minimalist design that lets the text take center stage. The collection has grown to nearly 60 opening lines, allowing users to refresh the page for a new quote each visit. The project was shared on Hacker News, where it received modest early attention.

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ProgrammingHacker News ·

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ProgrammingDEV Community ·

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ProgrammingDEV Community ·

Step-by-Step Guide: Build a JavaScript UI Framework From Scratch

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