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chore: Update webpack.config.js #51098
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Use of eslint-disable: The first line disables eslint rules for parameter reassignment (/* eslint no-param-reassign: 0 */). Analysis: Reassigning parameters (like webpackConfig) is generally discouraged in JavaScript as it can introduce side effects, making the code harder to understand and maintain. However, it's common in Webpack configurations. If this is unavoidable, the comment is appropriate, but care should be taken to avoid unnecessary reassignments. Dynamic Entry Configuration (addLocales): The addLocales function modifies the Webpack entry point and output filenames based on whether a minified version is present. Potential Improvement: Instead of directly modifying webpackConfig.entry and webpackConfig.output, you could copy the entry and output to a new object. This avoids direct mutation and improves maintainability. Since this is specific to Webpack configurations and may involve large objects, the performance hit for shallow copying would be minimal. External Dependencies (externalDayjs and externalCssinjs): These functions ensure that dayjs and @ant-design/cssinjs are externalized. This helps reduce bundle size by relying on global or existing dependencies rather than bundling them into the output. No issues: These configurations are clear and necessary for optimizing the bundle size. Externalizing dependencies is a standard Webpack optimization technique. Conditional Plugins (BundleAnalyzerPlugin, DuplicatePackageCheckerPlugin, etc.): Plugins such as BundleAnalyzerPlugin, DuplicatePackageCheckerPlugin, and CircularDependencyPlugin are conditionally added based on the environment. This is great for maintaining a clean and modular configuration. Improvement Suggestion: Consider separating the configuration of these plugins into distinct functions. This would improve the separation of concerns and readability. For instance, a function like addPluginsForProduction(config) could be created to handle all plugin-related logic for the production environment. Verbose Plugin Configurations in Non-CI Environments: The BundleAnalyzerPlugin is configured to generate a report (report.html) when certain environment variables are set, like ANALYZER or CI. No issues: This is a standard way to trigger analysis in non-CI environments, and the configuration is correctly gated behind environment variables. Webpack Optimizations (usedExports): The config.optimization.usedExports = true; setting is used to enable tree-shaking, reducing bundle size by removing unused exports. No issues: This is an effective optimization to reduce the size of non-minified distribution files. Direct Assignment of Webpack Config: The final export assigns webpackConfig to the module exports using the spread operator: module.exports = [...webpackConfig];. No issues: This is appropriate, especially if getWebpackConfig returns an array. Spreading ensures any array returned by getWebpackConfig is flattened, which can prevent unexpected behavior. Signed-off-by: Akshit Bansal <[email protected]>
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## master #51098 +/- ##
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Branches 3504 3504
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Use of eslint-disable:
The first line disables eslint rules for parameter reassignment (/* eslint no-param-reassign: 0 */). Analysis: Reassigning parameters (like webpackConfig) is generally discouraged in JavaScript as it can introduce side effects, making the code harder to understand and maintain. However, it's common in Webpack configurations. If this is unavoidable, the comment is appropriate, but care should be taken to avoid unnecessary reassignments. Dynamic Entry Configuration (addLocales):
The addLocales function modifies the Webpack entry point and output filenames based on whether a minified version is present. Potential Improvement: Instead of directly modifying webpackConfig.entry and webpackConfig.output, you could copy the entry and output to a new object. This avoids direct mutation and improves maintainability. Since this is specific to Webpack configurations and may involve large objects, the performance hit for shallow copying would be minimal. External Dependencies (externalDayjs and externalCssinjs):
These functions ensure that dayjs and @ant-design/cssinjs are externalized. This helps reduce bundle size by relying on global or existing dependencies rather than bundling them into the output. No issues: These configurations are clear and necessary for optimizing the bundle size. Externalizing dependencies is a standard Webpack optimization technique. Conditional Plugins (BundleAnalyzerPlugin, DuplicatePackageCheckerPlugin, etc.):
Plugins such as BundleAnalyzerPlugin, DuplicatePackageCheckerPlugin, and CircularDependencyPlugin are conditionally added based on the environment. This is great for maintaining a clean and modular configuration. Improvement Suggestion: Consider separating the configuration of these plugins into distinct functions. This would improve the separation of concerns and readability. For instance, a function like addPluginsForProduction(config) could be created to handle all plugin-related logic for the production environment. Verbose Plugin Configurations in Non-CI Environments:
The BundleAnalyzerPlugin is configured to generate a report (report.html) when certain environment variables are set, like ANALYZER or CI. No issues: This is a standard way to trigger analysis in non-CI environments, and the configuration is correctly gated behind environment variables. Webpack Optimizations (usedExports):
The config.optimization.usedExports = true; setting is used to enable tree-shaking, reducing bundle size by removing unused exports. No issues: This is an effective optimization to reduce the size of non-minified distribution files. Direct Assignment of Webpack Config:
The final export assigns webpackConfig to the module exports using the spread operator: module.exports = [...webpackConfig];.
No issues: This is appropriate, especially if getWebpackConfig returns an array. Spreading ensures any array returned by getWebpackConfig is flattened, which can prevent unexpected behavior.
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