just-task Build Task Definition Library

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library 1.13.0 ·javascript
verified May 27, 2026

just-task is a robust, lightweight library for defining and orchestrating build tasks in JavaScript and TypeScript projects. It functions as the foundational task definition layer within the broader `Just` ecosystem developed by Microsoft, which also includes `just-scripts` for higher-level, opinionated build presets. Currently at version 1.13.0, just-task provides core primitives such as `task`, `series`, and `parallel` for structuring complex build flows. Its release cadence is generally stable, with updates focusing on refinements and bug fixes rather than frequent breaking changes within the 1.x major version. A key differentiator is its unopinionated nature regarding specific tools (e.g., Webpack, Jest, TypeScript compiler), allowing developers to integrate their preferred tools seamlessly. It targets Node.js environments version 14 and above, offering both CommonJS and ES Module compatibility for task definitions. This library emphasizes clear, programmatic task definition, providing a flexible alternative to more configuration-heavy or tightly coupled build systems.

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