diff --git a/content/roadmaps/100-frontend/content/110-build-tools/102-linters-formatters/readme.md b/content/roadmaps/100-frontend/content/110-build-tools/102-linters-formatters/readme.md
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-# Linters formatters
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+# Linters formatters
+
+A linter is a tool used to analyze code and discover bugs, syntax errors, stylistic inconsistencies, and suspicious constructs. Popular linters for JavaScript include ESLint, JSLint, and JSHint.
+
+<BadgeLink colorScheme='blue' badgeText='Read' href='https://www.testim.io/blog/what-is-a-linter-heres-a-definition-and-quick-start-guide/'>What Is a Linter?</BadgeLink>