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README.md

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+**JavaScript-Code-Large**
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+JavaScript-Code-Large is a large-scale corpus of JavaScript source code comprising more than 5 million JavaScript files. The dataset is designed to support research in large language model (LLM) pretraining, code intelligence, software engineering automation, and program analysis for the JavaScript ecosystem.
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+By providing a high-volume, language-specific corpus, JavaScript-Code-Large enables systematic experimentation in JavaScript-focused model training, domain adaptation, and downstream code understanding tasks.
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+JavaScript-Code-Large addresses the need for a dedicated JavaScript-only dataset at substantial scale, enabling focused research across frontend, backend, and full-stack JavaScript environments.
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+**1. Dataset Composition**
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+Programming Language: JavaScript
+File Count: 5M+ JavaScript files
+File Format: .jsonl
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+Content Types
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+The dataset includes a wide variety of JavaScript constructs and paradigms, such as:
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+- Functions (declarations, expressions, arrow functions)
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+- Classes and prototypes
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+- Modules (CommonJS and ES Modules)
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+- Asynchronous patterns (async/await, Promises, callbacks)
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+- Event-driven code
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+- Closures and higher-order functions
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+- Functional programming constructs
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+- DOM manipulation code
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+- Node.js backend logic
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+- Frontend framework components
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+- JSDoc comments
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+- Error handling patterns
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+- Modern ES6+ features