Moderne, the enterprise code modernization platform from the group behind OpenRewrite, introduced full JavaScript and TypeScript help in its Lossless Semantic Tree (LST), positioning Moderne as the primary deterministic modernization platform to span a number of languages and utility layers. Enterprises can now convey the identical exact, automated refactoring lengthy used on the server aspect to their internet frontends.
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Moderne provides type-attributed JavaScript and TypeScript refactoring, unifying backend and frontend modernization in a single deterministic platform.
Modernization has lengthy been fragmented. Groups have relied on a patchwork of codemods, AST scripts, and language-specific refactoring utilities, with no single, dependable basis that spans stacks. Moderne’s Lossless Semantic Tree (LST) adjustments that: it now fashions Java, JavaScript, TypeScript, and customary Infrastructure-as-Code codecs with deep kind attribution and full control- and data-flow evaluation. For JavaScript and TypeScript, that is the primary really compiler-accurate, type-aware refactoring engine — shifting past syntax-bound codemods to allow secure, large-scale upgrades and program evaluation.
This variation arrives at a vital second. AI is writing extra code than ever and accelerating technical debt. Forrester studies that 75% of expertise leaders count on debt to rise as AI-generated code will increase complexity, whereas GitClear’s 2025 analysis reveals that “newly added” code has jumped from 39% to 46% of all adjustments since AI coding assistants turned mainstream. GitHub’s Octoverse highlights the surge in AI-assisted commits. With no semantic, cross-language basis, organizations wrestle to maintain up and safely evolve sprawling, mixed-language estates.
With Moderne, engineering and safety groups achieve a single platform for modernization:
- Affect evaluation: See the place strategies, sorts, and parts are used earlier than making adjustments.
- Protected, deterministic upgrades: Automated adjustments combine into current construct and launch pipelines with full validation and governance.
- Cross-language campaigns: Modernize backend (Java, Infrastructure as Code) and frontend (JavaScript/TypeScript) aspect by aspect.
“Enterprises don’t function in a single language,” stated Jonathan Schneider, CEO and co-founder of Moderne. “Including JavaScript proves our imaginative and prescient of a common modernization platform the place backend, frontend, and infrastructure-as-code could be modernized safely and at scale.”
Many enterprises face pressing JavaScript upgrades — equivalent to shifting from Node.js 20, now deprecated on GitHub Actions, to Node 24. Till now, these migrations relied on brittle codemods and guide opinions. Moderne’s type-safe, deterministic recipes present a scalable, dependable path to automate such adjustments throughout giant, advanced estates.
Safety is one other driver. JavaScript dependency chains are a frequent goal for supply-chain exploits. Moderne’s type-attributed evaluation lets safety groups hint untrusted inputs throughout purposes and find each place a weak library is used — turning modernization from a backlog downside right into a proactive protection technique.
“Context is what makes modernization secure,” Schneider stated. “With the LST, we give people and AI the identical full-fidelity mannequin of code, so adjustments are dependable and repeatable. Modernization can lastly turn into a steady functionality, not a one-off challenge.”
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