This article compares the tree‑shaking mechanisms of Rollup and Webpack, explains the three stages Webpack uses (UglifyJS, BabelMinify, Terser), details side‑effects handling, configuration tips, and performance benchmarks, providing practical guidance for optimizing bundle size in modern JavaScript projects.
This article explores why locating errors in minified JavaScript is difficult and presents five concrete solutions—including avoiding compression, adjusting semicolons, using beautify mode, leveraging SourceMap files, and adopting Sentry—to quickly pinpoint the original source of runtime errors.
This article continues the deep dive into UglifyJS compression, presenting advanced techniques for optimizing while loops, ternary conditional expressions, statement blocks, and IF branches, including rules for removing dead code, merging statements, and transforming structures to achieve maximal size reduction in JavaScript output.
This article explains how UglifyJS can dramatically reduce JavaScript file size by applying expression pre‑computation, operator shortening, dead code removal, and other advanced compression rules, illustrated with clear before‑and‑after code examples for each optimization.
