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Detects duplicate JavaScript libraries loaded multiple times
Rule IDperf/duplicate-js
CategoryPerformance
ScopePer-page
Severitywarning
Weight5/10

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Solution

Remove duplicate JavaScript library loads to reduce page weight and avoid conflicts. Check for the same library loaded from different CDNs or versions. Use a single source for each dependency. Consider using a module bundler to deduplicate shared dependencies.

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Enable / Disable

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Disable this rule

squirrel.toml
[rules]
disable = ["perf/duplicate-js"]

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Disable all Performance rules

squirrel.toml
[rules]
disable = ["perf/*"]

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Enable only this rule

squirrel.toml
[rules]
enable = ["perf/duplicate-js"]
disable = ["*"]