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21. Bundle analysis and splitting
Tools and techniques to analyze bundle size and implement code-splitting per route or component.
1 min read Chapter 21 of 31
JavaScript
Bundle analysis and splitting
Breaking an app into separately loaded pieces and measuring their sizes so users only download what they need.
"I keep shipping slow pages because my whole app downloads at once."
Bundle analysis finds which files and dependencies make your JavaScript bundle large; code-splitting divides your code so parts load on demand (per route or component).
"I keep shipping slow pages because my whole app downloads at once."
Bundle analysis finds which files and dependencies make your JavaScript bundle large; code-splitting divides your code so parts load on demand (per route or component).