UI5 uses ESLint to check JavaScript sources.
The current set of enabled rules can be found in the top-level .eslintrc.json file.
Those rules apply to all JavaScript code that is part of the OpenUI5 project repository.
Library projects may decide on a stricter rule set for the whole library or parts of it.
Rules from the central rule set MUST NOT be overridden with a lower severity.
Example: src/sap.ui.fl/.eslintrc.json
See Developing OpenUI5 > Running the Static Code Checks (ESLint)