eslint-config-vaadin
Version:
Vaadin base JS/TS ESLint config
175 lines • 11.2 kB
JavaScript
const rules = {
// Disallows awaiting a value that is not a Promise
// https://typescript-eslint.io/rules/await-thenable
'@typescript-eslint/await-thenable': 'error',
// Enforces consistent usage of type exports (regular and type-only)
// https://typescript-eslint.io/rules/consistent-type-exports
'@typescript-eslint/consistent-type-exports': ['error', { fixMixedExportsWithInlineTypeSpecifier: true }],
// Enforces naming conventions for everything across a codebase
// https://typescript-eslint.io/rules/naming-convention
// it is hard to configure this rule accurately
'@typescript-eslint/naming-convention': 'off',
// Disallow using the delete operator on array values
// https://typescript-eslint.io/rules/no-array-delete
'@typescript-eslint/no-array-delete': 'error',
// Requires that .toString() is only called on objects which provide useful
// information when stringified.
// https://typescript-eslint.io/rules/no-base-to-string
'@typescript-eslint/no-base-to-string': 'error',
// Requires expressions of type void to appear in statement position.
// https://typescript-eslint.io/rules/no-confusing-void-expression
// EXPLANATION: Too strict
'@typescript-eslint/no-confusing-void-expression': 'off',
// Disallow using code marked as @deprecated.
// https://typescript-eslint.io/rules/no-deprecated
'@typescript-eslint/no-deprecated': 'error',
// Disallow duplicate constituents of union or intersection types.
// https://typescript-eslint.io/rules/no-duplicate-type-constituents
'@typescript-eslint/no-duplicate-type-constituents': ['error', { ignoreIntersections: true }],
// Requires Promise-like values to be handled appropriately
// https://typescript-eslint.io/rules/no-floating-promises
'@typescript-eslint/no-floating-promises': 'error',
// Disallow iterating over an array with a for-in loop
// https://typescript-eslint.io/rules/no-for-in-array
'@typescript-eslint/no-for-in-array': 'error',
// Disallow the void operator except when used to discard a value.
// https://typescript-eslint.io/rules/no-meaningless-void-operator
'@typescript-eslint/no-meaningless-void-operator': ['error', { checkNever: false }],
// Avoid using promises in places not designed to handle them
// https://typescript-eslint.io/rules/no-misused-promises
'@typescript-eslint/no-misused-promises': ['error', { checksVoidReturn: true, checksConditionals: true }],
// Disallow using the spread operator when it might cause unexpected behavior.
// https://typescript-eslint.io/rules/no-misused-spread
'@typescript-eslint/no-misused-spread': 'error',
// Disallow enums from having both number and string members.
// https://typescript-eslint.io/rules/no-mixed-enums
'@typescript-eslint/no-mixed-enums': 'error',
// Disallow members of unions and intersections that do nothing or override type information.
// https://typescript-eslint.io/rules/no-redundant-type-constituents
'@typescript-eslint/no-redundant-type-constituents': 'error',
// Flags unnecessary equality comparisons against boolean literals
// https://typescript-eslint.io/rules/no-unnecessary-boolean-literal-compare
'@typescript-eslint/no-unnecessary-boolean-literal-compare': 'error',
// Prevents conditionals where the type is always truthy or always falsy
// https://typescript-eslint.io/rules/no-unnecessary-condition
'@typescript-eslint/no-unnecessary-condition': 'error',
// Warns when a namespace qualifier is unnecessary
// https://typescript-eslint.io/rules/no-unnecessary-qualifier
'@typescript-eslint/no-unnecessary-qualifier': 'error',
// Disallow unnecessary template expressions
// https://typescript-eslint.io/rules/no-unnecessary-template-expression
'@typescript-eslint/no-unnecessary-template-expression': 'error',
// Warns if an explicitly specified type argument is the default for that type parameter
// https://typescript-eslint.io/rules/no-unnecessary-type-arguments
'@typescript-eslint/no-unnecessary-type-arguments': 'error',
// Warns if a type assertion does not change the type of expression
// https://typescript-eslint.io/rules/no-unnecessary-type-assertion
'@typescript-eslint/no-unnecessary-type-assertion': 'error',
// Disallow conversion idioms when they do not change the type or value of the expression.
// https://typescript-eslint.io/rules/no-unnecessary-type-conversion
'@typescript-eslint/no-unnecessary-type-conversion': 'error',
// Disallow type parameters that aren't used multiple times.
// https://typescript-eslint.io/rules/no-unnecessary-type-parameters
'@typescript-eslint/no-unnecessary-type-parameters': 'error',
// Disallows calling a function with an any type value
// https://typescript-eslint.io/rules/no-unsafe-argument
// Too strict
'@typescript-eslint/no-unsafe-argument': 'off',
// Disallows assigning any to variables and properties
// https://typescript-eslint.io/rules/no-unsafe-assignment
'@typescript-eslint/no-unsafe-assignment': 'off',
// Disallows calling an any type value
// https://typescript-eslint.io/rules/no-unsafe-call
'@typescript-eslint/no-unsafe-call': 'error',
// Disallow comparing an enum value with a non-enum value.
// https://typescript-eslint.io/rules/no-unsafe-enum-comparison
'@typescript-eslint/no-unsafe-enum-comparison': 'error',
// Disallows member access on any typed variables
// https://typescript-eslint.io/rules/no-unsafe-member-access
'@typescript-eslint/no-unsafe-member-access': 'error',
// Disallows returning any from a function
// https://typescript-eslint.io/rules/no-unsafe-return
// EXPLANATION: Sometimes there is no other way except for using "any" in
// return
'@typescript-eslint/no-unsafe-return': 'off',
// Disallow type assertions that narrow a type.
// https://typescript-eslint.io/rules/no-unsafe-type-assertion
'@typescript-eslint/no-unsafe-type-assertion': 'error',
// Require unary negation to take a number
// https://typescript-eslint.io/rules/no-unsafe-unary-minus
'@typescript-eslint/no-unsafe-unary-minus': 'error',
// Disallow default values that will never be used.
// https://typescript-eslint.io/rules/no-useless-default-assignment
'@typescript-eslint/no-useless-default-assignment': 'error',
// Prefers a non-null assertion over explicit type cast when possible
// https://typescript-eslint.io/rules/non-nullable-type-assertion-style
'@typescript-eslint/non-nullable-type-assertion-style': 'error',
// Enforce the use of Array.prototype.find() over Array.prototype.filter() followed by [0] when looking for a single result
// https://typescript-eslint.io/rules/prefer-find
'@typescript-eslint/prefer-find': 'error',
// Enforce includes method over indexOf method
// https://typescript-eslint.io/rules/prefer-includes
'@typescript-eslint/prefer-includes': 'error',
// Enforce the usage of the nullish coalescing operator instead of logical chaining
// https://typescript-eslint.io/rules/prefer-nullish-coalescing
'@typescript-eslint/prefer-nullish-coalescing': 'error',
// Prefer using concise optional chain expressions instead of chained logical ands
// https://typescript-eslint.io/rules/prefer-optional-chain
'@typescript-eslint/prefer-optional-chain': 'error',
// Requires that private members are marked as readonly if they're never modified outside the constructor
// https://typescript-eslint.io/rules/prefer-readonly
'@typescript-eslint/prefer-readonly': 'error',
// Requires that function parameters are typed as readonly to prevent
// accidental mutation of inputs
// https://typescript-eslint.io/rules/prefer-readonly-parameter-types
// EXPLANATION: Works weird, too irritating.
'@typescript-eslint/prefer-readonly-parameter-types': 'off',
// Prefer using type parameter when calling Array#reduce instead of casting
// https://typescript-eslint.io/rules/prefer-reduce-type-parameter
'@typescript-eslint/prefer-reduce-type-parameter': 'error',
// Prefer RegExp#exec() over String#match() if no global flag is provided
// https://typescript-eslint.io/rules/prefer-regexp-exec
'@typescript-eslint/prefer-regexp-exec': 'error',
// Enforce that this is used when only this type is returned
// https://typescript-eslint.io/rules/prefer-return-this-type
'@typescript-eslint/prefer-return-this-type': 'error',
// Enforce the use of String#startsWith and String#endsWith instead of other equivalent methods of checking substrings
// https://typescript-eslint.io/rules/prefer-string-starts-ends-with
'@typescript-eslint/prefer-string-starts-ends-with': 'error',
// Requires any function or method that returns a Promise to be marked async
// https://typescript-eslint.io/rules/promise-function-async
'@typescript-eslint/promise-function-async': 'error',
// Enforce that get() types should be assignable to their equivalent set() type.
// https://typescript-eslint.io/rules/related-getter-setter-pairs
'@typescript-eslint/related-getter-setter-pairs': 'error',
// Enforce giving compare argument to Array#sort
// https://typescript-eslint.io/rules/require-array-sort-compare
'@typescript-eslint/require-array-sort-compare': 'error',
// When adding two variables, operands must both be of type number or of type string
// https://typescript-eslint.io/rules/restrict-plus-operands
'@typescript-eslint/restrict-plus-operands': 'error',
// Enforce template literal expressions to be of string type
// https://typescript-eslint.io/rules/restrict-template-expressions
'@typescript-eslint/restrict-template-expressions': 'error',
// Enforce consistent awaiting of returned promises
// https://typescript-eslint.io/rules/return-await
'@typescript-eslint/return-await': ['error', 'always'],
// Restricts the types allowed in boolean expressions
// https://typescript-eslint.io/rules/strict-boolean-expressions
// EXPLANATION: Too strict
'@typescript-eslint/strict-boolean-expressions': 'off',
// Disallows passing a value-returning function in a position accepting a void function
// https://typescript-eslint.io/rules/strict-void-return
'@typescript-eslint/strict-void-return': 'error',
// Exhaustiveness checking in switch with union type
// https://typescript-eslint.io/rules/switch-exhaustiveness-check
'@typescript-eslint/switch-exhaustiveness-check': 'error',
// Enforces unbound methods are called with their expected scope
// https://typescript-eslint.io/rules/unbound-method
'@typescript-eslint/unbound-method': ['error', { ignoreStatic: true }],
// Enforce typing arguments in .catch() callbacks as unknown
// https://typescript-eslint.io/rules/use-unknown-in-catch-callback-variable
'@typescript-eslint/use-unknown-in-catch-callback-variable': 'error',
};
export default rules;
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