// Input @Component({ template: `... `, styles: `h1 { color: blue; }`, }) export class AppComponent {} // Prettier 3.2.4 @Component({ template: `... `, styles: `h1 { color: blue; }`, }) export class AppComponent {} // Prettier 3.2.5 @Component({ template: `... `, styles: ` h1 { color: blue; } `, }) export class AppComponent {}

Unexpected embedded formatting for Angular template (# 15969 by @ JounQin)

Computed template should not be considered as Angular component template

// Input const template = "foobar"; @Component({ [template]: `{{ hello }} `, }) export class AppComponent {} // Prettier 3.2.4 const template = "foobar"; @Component({ [template]: `{{ hello }} `, }) export class AppComponent {} // Prettier 3.2.5 const template = "foobar"; @Component({ [template]: `{{ hello }} `, }) export class AppComponent {}

Use `"json"` parser for `tsconfig.json` by default (# 16012 by @ sosukesuzuki)

In v2.3.0, we introduced "jsonc" parser which adds trialing comma by default.

When adding a new parser we also define how it will be used based on the linguist-languages data.

tsconfig.json is a special file used by TypeScript, it uses .json file extension, but it actually uses the JSON with Comments syntax. However, we found that there are many third-party tools not recognize it correctly because of the confusing .json file extension.

We decide to treat it as a JSON file for now to avoid the extra configuration step.

To keep using the "jsonc" parser for your tsconfig.json files, add the following to your .pretterrc file

{ "overrides": [ { "files": ["tsconfig.json", "jsconfig.json"], "options": { "parser": "jsonc" } } ] }

`v3.2.4`

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diff

Fix incorrect parser inference (# 15947 by @ fisker)

Files like .eslintrc.json were incorrectly formatted as JSONC files.

// Input prettier --file-info .eslintrc.json { "ignored": false, "inferredParser": "jsonc" } // Prettier 3.2.4 prettier --file-info .eslintrc.json { "ignored": false, "inferredParser": "json" }

`v3.2.3`

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diff

Throw errors for invalid code (# 15881 by @ fisker, @ Josh-Cena, @ auvred)

// Input 1++; // Prettier 3.2.2 1++; // Prettier 3.2.3 SyntaxError: Invalid left-hand side expression in unary operation (1:1) > 1 | 1++; | ^

// Input try {} catch (error = 1){} // Prettier 3.2.2 try { } catch (error) {} // Prettier 3.2.3 SyntaxError: Catch clause variable cannot have an initializer. (1:23) > 1 | try {} catch (error = 1){} | ^

Fix parser inference (# 15927 by @ fisker)

// Prettier 3.2.2 prettier --file-info tsconfig.json { "ignored": false, "inferredParser": "json" } // Prettier 3.2.3 prettier --file-info tsconfig.json { "ignored": false, "inferredParser": "jsonc" }

`v3.2.2`

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diff

Fix crash when parsing template literal CSS in a JSX style tag using a spread attribute (# 15896 by @ eelco)

For example this code would crash before:

Fix formatting error on optional call expression and member chain (# 15920 by @ sosukesuzuki)

{}, c?.d());">// Input a(() => {}, c?.d()); // Prettier 3.2.1 TypeError: Cannot read properties of undefined (reading 'type') // Prettier 3.2.2 a(() => {}, c?.d());

`v3.2.1`

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diff

Fix formatting error on member chain (# 15915 by @ sosukesuzuki)

// Input test().test2().test2(thing?.something); // Prettier 3.2.0 TypeError: Cannot read properties of undefined (reading 'type') // Prettier 3.2.1 test().test2().test2(thing?.something);

`v3.2.0`

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Release Notes

`v3.1.1`

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Fix config file search (# 15363 by @ fisker)

Previously, we start search for config files from the filePath as a directory, if it happened to be a directory and contains config file, it will be used by mistake.

+- .prettierrc +- test.js (A directory) +- .prettierrc

// Prettier 3.1.0 await prettier.resolveConfigFile(new URL("./test.js", import.meta.url)); // /test.js/.prettierrc // Prettier 3.1.1 await prettier.resolveConfigFile(new URL("./test.js", import.meta.url)); // /.prettierrc

Skip explicitly passed symbolic links with `--no-error-on-unmatched-pattern` (# 15533 by @ sanmai-NL)

Since Prettier v3, we stopped following symbolic links, however in some use cases, the symbolic link patterns can't be filtered out, and there is no way to prevent Prettier from throwing errors.

In Prettier 3.1.1, you can use --no-error-on-unmatched-pattern to simply skip symbolic links.

Consistently use tabs in ternaries when `useTabs` is `true` (# 15662 by @ auvred)

// Input aaaaaaaaaaaaaaa ? bbbbbbbbbbbbbbbbbb : ccccccccccccccc ? ddddddddddddddd : eeeeeeeeeeeeeee ? fffffffffffffff : gggggggggggggggg; // Prettier 3.1.0 aaaaaaaaaaaaaaa ? bbbbbbbbbbbbbbbbbb : ccccccccccccccc ? ddddddddddddddd : eeeeeeeeeeeeeee ? fffffffffffffff : gggggggggggggggg; // Prettier 3.1.1 aaaaaaaaaaaaaaa ? bbbbbbbbbbbbbbbbbb : ccccccccccccccc ? ddddddddddddddd : eeeeeeeeeeeeeee ? fffffffffffffff : gggggggggggggggg;

Improve config file search (# 15663 by @ fisker)

The Prettier config file search performance has been improved by more effective cache strategy.

Fix unstable and ugly formatting for comments in destructuring patterns (# 15708 by @ sosukesuzuki)

// Input const { foo, // bar // baz }: Foo = expr; // Prettier 3.1.0 const { foo1, } // bar // baz : Foo = expr; // Prettier 3.1.0 second output const { foo1, // bar } // baz : Foo = expr; // Prettier 3.1.1 const { foo1, // bar // baz }: Foo = expr;

Support "Import Attributes" (# 15718 by @ fisker)

TypeScript 5.3 supports the latest updates to the import attributes proposal.

import something from "./something.json" with { type: "json" };

Fix false claim in docs that cursorOffset is incompatible with rangeStart/rangeEnd (# 15750 by @ ExplodingCabbage)

The cursorOffset option has in fact been compatible with rangeStart/rangeEnd for over 5 years, thanks to work by @ ds300. However, Prettier's documentation (including the CLI --help text) continued to claim otherwise, falsely. The documentation is now fixed.

Keep curly braces and `from` keyword in empty `import` statements (# 15756 by @ fisker)

// Input import { } from 'foo'; import { /* comment */ } from 'bar'; // Prettier 3.1.0 import {} from "foo"; import /* comment */ "bar"; // Prettier 3.1.1 import {} from "foo"; import {} from /* comment */ "bar";

Keep empty import attributes and assertions (# 15757 by @ fisker)

// Input import foo from "foo" with {}; import bar from "bar" assert {}; // Prettier 3.1.0 import foo from "foo"; import bar from "bar"; // Prettier 3.1.1 import foo from "foo" with {}; import bar from "bar" assert {};

`v3.1.0`

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Release Notes

`v3.0.3`

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diff

Add `preferUnplugged: true` to `package.json` (# 15169 by @ fisker and @ so1ve)

Prettier v3 uses dynamic imports, user will need to unplug Prettier when Yarn's PnP mode is enabled, add preferUnplugged: true to package.json, so Yarn will install Prettier as unplug by default.

Support shared config that forbids `require()` (# 15233 by @ fisker)

If an external shared config package is used, and the package exports don't have require or default export.

In Prettier 3.0.2 Prettier fails when attempt to require() the package, and throws an error.

Error [ERR_PACKAGE_PATH_NOT_EXPORTED]: No "exports" main defined in /package.json

Allow argument of `require()` to break (# 15256 by @ fisker)

// Input const plugin = require( global.STANDALONE ? path.join(__dirname, "../standalone.js") : path.join(__dirname, "..") ); // Prettier 3.0.2 const plugin = require(global.STANDALONE ? path.join(__dirname, "../standalone.js") : path.join(__dirname, "..")); // Prettier 3.0.3 const plugin = require( global.STANDALONE ? path.join(__dirname, "../standalone.js") : path.join(__dirname, "..") );

Do not print trailing commas in arrow function type parameter lists in `ts` code blocks (# 15286 by @ sosukesuzuki)

```ts const foo = <T>() => {} ``` ```ts const foo = <T,>() => {} ``` ```ts const foo = <T>() => {} ```

Support TypeScript 5.2 `using` / `await using` declaration (# 15321 by @ sosukesuzuki)

Support for the upcoming Explicit Resource Management feature in ECMAScript. using / await using declaration

{ using foo = new Foo(); await using bar = new Bar(); }

`v3.0.2`

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diff

Break after `=` of assignment if RHS is poorly breakable AwaitExpression or YieldExpression (# 15204 by @ seiyab)

// Input const { section, rubric, authors, tags } = await utils.upsertCommonData(mainData); // Prettier 3.0.1 const { section, rubric, authors, tags } = await utils.upsertCommonData( mainData, ); // Prettier 3.0.2 const { section, rubric, authors, tags } = await utils.upsertCommonData(mainData);

Do not add trailing comma for grouped scss comments (# 15217 by @ auvred)

/* Input */ $foo: ( 'property': (), // comment 1 // comment 2 ) /* Prettier 3.0.1 */ $foo: ( "property": (), // comment 1 // comment 2, ); /* Prettier 3.0.2 */ $foo: ( "property": (), // comment 1 // comment 2 );

Print `declare` and `export` keywords for nested namespace (# 15249 by @ sosukesuzuki)

// Input declare namespace abc1.def {} export namespace abc2.def {} // Prettier 3.0.1 namespace abc1.def {} namespace abc2.def {} // Prettier 3.0.2 declare namespace abc1.def {} export namespace abc2.def {}

`v3.0.1`

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diff

Fix cursor positioning for a special case (# 14812 by @ fisker)

// <|> is the cursor position /* Input */ // All messages are represented in JSON. // So, the prettier.py controls a subprocess which spawns "node {this_file}". import {<|> } from "fs" /* Prettier 3.0.0 */ // All messages are represented in JSON. // So, the prettier.py <|>controls a subprocess which spawns "node {this_file}". import {} from "fs" /* Prettier 3.0.1 */ // All messages are represented in JSON. // So, the prettier.py controls a subprocess which spawns "node {this_file}". import {<|>} from "fs"

Fix plugins/estree.d.ts to make it a module (# 15018 by @ kingyue737)

Add export {} in plugins/estree.d.ts to fix the "File is not a module" error

Add parenthesis around leading multiline comment in return statement (# 15037 by @ auvred)

// Input function fn() { return ( /** * @type {...} */ expresssion ) } // Prettier 3.0.0 function fn() { return /** * @type {...} */ expresssion; } // Prettier 3.0.1 function fn() { return ( /** * @type {...} */ expresssion ); }

Add support for Vue "Generic Components" (# 15066 by @ auvred)

https://blog.vuejs.org/posts/vue-3-3#generic-components

Fix comments print in `IfStatement` (# 15076 by @ fisker)

function a(b) { if (b) return 1; // comment else return 2; } /* Prettier 3.0.0 */ Error: Comment "comment" was not printed. Please report this error! /* Prettier 3.0.1 */ function a(b) { if (b) return 1; // comment else return 2; }

Add missing type definition for `printer.preprocess` (# 15123 by @ so1ve)

export interface Printer { // ... + preprocess?: + | ((ast: T, options: ParserOptions) => T | Promise) + | undefined; }

Add missing `getVisitorKeys` method type definition for `Printer` (# 15125 by @ auvred)

const printer: Printer = { print: () => [], getVisitorKeys(node, nonTraversableKeys) { return ["body"]; }, };

Add typing to support `readonly` array properties of AST Node (# 15127 by @ auvred)

; path.map(() => "", "readonlyArray");">// Input interface TestNode { readonlyArray: readonly string[]; } declare const path: AstPath<TestNode>; path.map(() => "", "readonlyArray"); // Prettier 3.0.0 interface TestNode { readonlyArray: readonly string[]; } declare const path: AstPath<TestNode>; path.map(() => "", "readonlyArray"); // ^ Argument of type '"readonlyArray"' is not assignable to parameter of type '"regularArray"'. ts(2345) // Prettier 3.0.1 interface TestNode { readonlyArray: readonly string[]; } declare const path: AstPath<TestNode>; path.map(() => "", "readonlyArray");

Add space before unary minus followed by a function call (# 15129 by @ pamelalozano)

// Input div { margin: - func(); } // Prettier 3.0.0 div { margin: -func(); } // Prettier 3.0.1 div { margin: - func(); }

`v3.0.0`

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Release Notes

`v2.8.8`

Compare Source

This version is a republished version of v2.8.7.
A bad version was accidentally published and it can't be unpublished, apologies for the churn.

`v2.8.7`

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diff

Allow multiple decorators on same getter/setter (# 14584 by @ fisker)

// Input class A { @decorator() get foo () {} @decorator() set foo (value) {} } // Prettier 2.8.6 SyntaxError: Decorators cannot be applied to multiple get/set accessors of the same name. (5:3) 3 | get foo () {} 4 | > 5 | @decorator() | ^^^^^^^^^^^^ 6 | set foo (value) {} 7 | } // Prettier 2.8.7 class A { @decorator() get foo() {} @decorator() set foo(value) {} }

`v2.8.6`

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Allow decorators on private members and class expressions (# 14548 by @ fisker)

// Input class A { @decorator() #privateMethod () {} } // Prettier 2.8.5 SyntaxError: Decorators are not valid here. (2:3) 1 | class A { > 2 | @decorator() | ^^^^^^^^^^^^ 3 | #privateMethod () {} 4 | } // Prettier 2.8.6 class A { @decorator() #privateMethod() {} }

`v2.8.5`

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Support TypeScript 5.0 (# 14391 by @ fisker, # 13819 by @ fisker, @ sosukesuzuki)

TypeScript 5.0 introduces two new syntactic features:

const modifiers for type parameters
export type * declarations

Add missing parentheses for decorator (# 14393 by @ fisker)

// Input class Person { @(myDecoratorArray[0]) greet() {} } // Prettier 2.8.4 class Person { @myDecoratorArray[0] greet() {} } // Prettier 2.8.5 class Person { @(myDecoratorArray[0]) greet() {} }

Add parentheses for `TypeofTypeAnnotation` to improve readability (# 14458 by @ fisker)

// Input type A = (typeof node.children)[]; // Prettier 2.8.4 type A = typeof node.children[]; // Prettier 2.8.5 type A = (typeof node.children)[];

Support `max_line_length=off` when parsing `.editorconfig` (# 14516 by @ josephfrazier)

If an .editorconfig file is in your project and it sets max_line_length=off for the file you're formatting,
it will be interpreted as a printWidth of Infinity rather than being ignored
(which previously resulted in the default printWidth of 80 being applied, if not overridden by Prettier-specific configuration).

;

;"><div className='HelloWorld' title={`You are visitor number ${ num }`} onMouseOver={onMouseOver}/> <div className="HelloWorld" title={`You are visitor number ${num}`} onMouseOver={onMouseOver} />; <div className="HelloWorld" title={`You are visitor number ${num}`} onMouseOver={onMouseOver} />;

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 chore(deps): update dependency prettier to v3

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renovate bot commented Jul 8, 2023 * edited Loading Uh oh! There was an error while loading. Please reload this page.

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Release Notes

Support Angular inline styles as single template literal (# 15968 by @ sosukesuzuki)

Unexpected embedded formatting for Angular template (# 15969 by @ JounQin)

{{ hello }}

{{ hello }}

{{ hello }}

Use "json" parser for tsconfig.json by default (# 16012 by @ sosukesuzuki)

Fix incorrect parser inference (# 15947 by @ fisker)

Throw errors for invalid code (# 15881 by @ fisker, @ Josh-Cena, @ auvred)

Fix parser inference (# 15927 by @ fisker)

Fix crash when parsing template literal CSS in a JSX style tag using a spread attribute (# 15896 by @ eelco)

Fix formatting error on optional call expression and member chain (# 15920 by @ sosukesuzuki)

Fix formatting error on member chain (# 15915 by @ sosukesuzuki)

Fix config file search (# 15363 by @ fisker)

Skip explicitly passed symbolic links with --no-error-on-unmatched-pattern (# 15533 by @ sanmai-NL)

Consistently use tabs in ternaries when useTabs is true (# 15662 by @ auvred)

Improve config file search (# 15663 by @ fisker)

Fix unstable and ugly formatting for comments in destructuring patterns (# 15708 by @ sosukesuzuki)

Support "Import Attributes" (# 15718 by @ fisker)

Fix false claim in docs that cursorOffset is incompatible with rangeStart/rangeEnd (# 15750 by @ ExplodingCabbage)

Keep curly braces and from keyword in empty import statements (# 15756 by @ fisker)

Keep empty import attributes and assertions (# 15757 by @ fisker)

Add preferUnplugged: true to package.json (# 15169 by @ fisker and @ so1ve)

Support shared config that forbids require() (# 15233 by @ fisker)

Allow argument of require() to break (# 15256 by @ fisker)

Do not print trailing commas in arrow function type parameter lists in ts code blocks (# 15286 by @ sosukesuzuki)

Support TypeScript 5.2 using / await using declaration (# 15321 by @ sosukesuzuki)

Break after = of assignment if RHS is poorly breakable AwaitExpression or YieldExpression (# 15204 by @ seiyab)

Do not add trailing comma for grouped scss comments (# 15217 by @ auvred)

Print declare and export keywords for nested namespace (# 15249 by @ sosukesuzuki)

Fix cursor positioning for a special case (# 14812 by @ fisker)

Fix plugins/estree.d.ts to make it a module (# 15018 by @ kingyue737)

Add parenthesis around leading multiline comment in return statement (# 15037 by @ auvred)

Add support for Vue "Generic Components" (# 15066 by @ auvred)

Fix comments print in IfStatement (# 15076 by @ fisker)

Add missing type definition for printer.preprocess (# 15123 by @ so1ve)

Add missing getVisitorKeys method type definition for Printer (# 15125 by @ auvred)

Add typing to support readonly array properties of AST Node (# 15127 by @ auvred)

Add space before unary minus followed by a function call (# 15129 by @ pamelalozano)

Allow multiple decorators on same getter/setter (# 14584 by @ fisker)

Allow decorators on private members and class expressions (# 14548 by @ fisker)

Support TypeScript 5.0 (# 14391 by @ fisker, # 13819 by @ fisker, @ sosukesuzuki)

Add missing parentheses for decorator (# 14393 by @ fisker)

Add parentheses for TypeofTypeAnnotation to improve readability (# 14458 by @ fisker)

Support max_line_length=off when parsing .editorconfig (# 14516 by @ josephfrazier)

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renovate bot commented Jul 8, 2023 *

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Use `"json"` parser for `tsconfig.json` by default (# 16012 by @ sosukesuzuki)

Skip explicitly passed symbolic links with `--no-error-on-unmatched-pattern` (# 15533 by @ sanmai-NL)

Consistently use tabs in ternaries when `useTabs` is `true` (# 15662 by @ auvred)

Keep curly braces and `from` keyword in empty `import` statements (# 15756 by @ fisker)

Add `preferUnplugged: true` to `package.json` (# 15169 by @ fisker and @ so1ve)

Support shared config that forbids `require()` (# 15233 by @ fisker)

Allow argument of `require()` to break (# 15256 by @ fisker)

Do not print trailing commas in arrow function type parameter lists in `ts` code blocks (# 15286 by @ sosukesuzuki)

Support TypeScript 5.2 `using` / `await using` declaration (# 15321 by @ sosukesuzuki)

Break after `=` of assignment if RHS is poorly breakable AwaitExpression or YieldExpression (# 15204 by @ seiyab)

Print `declare` and `export` keywords for nested namespace (# 15249 by @ sosukesuzuki)

Fix comments print in `IfStatement` (# 15076 by @ fisker)

Add missing type definition for `printer.preprocess` (# 15123 by @ so1ve)

Add missing `getVisitorKeys` method type definition for `Printer` (# 15125 by @ auvred)

Add typing to support `readonly` array properties of AST Node (# 15127 by @ auvred)

Add parentheses for `TypeofTypeAnnotation` to improve readability (# 14458 by @ fisker)

Support `max_line_length=off` when parsing `.editorconfig` (# 14516 by @ josephfrazier)