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Rolldown REPL

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Field note

What it does

Are you an LLM? You can read better optimized documentation at /guide/troubleshooting.md for this page in Markdown format Troubleshooting ​ Performance ​ Performance is a primary goal for Rolldown. However, build performance isn't solely determined by Rolldown itself. It's also significantly affected by the environment it runs in and the plugins used. While we continuously strive to improve Rolldown to minimize these external factors, there are inherent limitations and areas where optimizations are still ongoing. This guide provides insights into potential bottlenecks and how you can mitigate them. Environment ​ The operating system and its configuration can impact build times, particularly file system operations. Windows ​ File system access on Windows is generally slower compared to other operating systems like macOS or Linux.

Capabilities

Available capabilities

HookPerformance OptimizationSource Map GenerationPlugin APIBuild from SourcePluginFile system operationsSet up Sentry in any projectPluginsTroubleshootingInsightsDevelopment ServerCollapsible sectionsFunctions and Scheduled JobsDocumentationConfigurationPlugin Hook FiltersBuildBuild Script (main.py)Make

Tags

Tags

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Ways to use it

Ways to use it

No integrations filed yet.

Product features

Product features

Avoid relying on Temporal Dead Zone (TDZ) errors ​

Avoid relying on this in exported functions ​

Avoiding Direct eval ​

Environment ​

Error: "Cannot find module '@rolldown/binding-...'" ​

Leverage Built-in Features ​

Performance ​

Plugin Hook Filters ​

Plugins ​

Troubleshooting ​

Warning: "Sourcemap is likely to be incorrect" ​

Windows ​