Unicorn

247 rules eslint-plugin-unicorn@79.0.0

Complete effective rule inventory.

Docs

unicorn/prefer-structured-clone
Prefer using structuredClone to create a deep clone.

: error in All Unicorn contexts

No autofix; suggestions available
unicorn/prefer-switch
Prefer switch over multiple else-if.

: error in All Unicorn contexts

Autofix available; suggestions available
unicorn/prefer-then-catch
Prefer .then().catch() over .then(…, …) for error handling.

: error in All Unicorn contexts

No autofix; suggestions available
unicorn/prefer-top-level-await
Prefer top-level await over top-level promises and async function calls.

: error in All Unicorn contexts

No autofix; suggestions available
unicorn/prefer-type-error
Enforce throwing TypeError in type checking conditions.

: error in All Unicorn contexts

Autofix available
unicorn/prefer-unary-minus
Prefer the unary minus operator over multiplying or dividing by -1.

: error in All Unicorn contexts

Autofix available
unicorn/prefer-unicode-code-point-escapes
Prefer Unicode code point escapes over legacy escape sequences.

: error in All Unicorn contexts

Autofix available; suggestions available
unicorn/prefer-url-can-parse
Prefer URL.canParse() over constructing a URL in a try/catch for validation.

: error in All Unicorn contexts

Autofix available
unicorn/prefer-url-search-parameters
Prefer URLSearchParams over manually splitting query strings.

: error in All Unicorn contexts

No autofix; suggestions available
unicorn/prefer-while-loop-condition
Prefer putting the condition in the while statement.

: error in All Unicorn contexts

Autofix available
unicorn/relative-url-style
Enforce consistent relative URL style.

: error in All Unicorn contexts

Autofix available; suggestions available
unicorn/require-array-join-separator
Enforce using the separator argument with Array#join().

: error in All Unicorn contexts

Autofix available
unicorn/require-css-escape
Require CSS.escape() for interpolated values in CSS selectors.

: error in All Unicorn contexts

Autofix available
unicorn/require-module-attributes
Require non-empty module attributes for imports and exports

: error in All Unicorn contexts

Autofix available
unicorn/require-module-specifiers
Require non-empty specifier list in import and export statements.

: error in All Unicorn contexts

Autofix available; suggestions available
unicorn/require-number-to-fixed-digits-argument
Enforce using the digits argument with Number#toFixed().

: error in All Unicorn contexts

Autofix available
unicorn/require-passive-events
Require passive event listeners for high-frequency events.

: error in All Unicorn contexts

Autofix available
unicorn/require-post-message-target-origin
Enforce using the targetOrigin argument with window.postMessage().

: error in All Unicorn contexts

No autofix; suggestions available
unicorn/require-proxy-trap-boolean-return
Require boolean-returning Proxy traps to return booleans.

: error in All Unicorn contexts

Autofix available
unicorn/require-text-decoder-streaming
Require streaming decoding of fetch-body chunks with TextDecoder.

: error in All Unicorn contexts

No autofix; suggestions available
unicorn/single-line-block-comment-style
Enforce a consistent style for single-line block comments.

: warning in All Unicorn contexts

Autofix available
unicorn/text-encoding-identifier-case
Enforce consistent case for text encoding identifiers.

: error in All Unicorn contexts

Autofix available; suggestions available
unicorn/throw-new-error
Require new when creating an error.

: error in All Unicorn contexts

Autofix available

Rules