prettier/prettier (prettier)
### [`v1.19.1`](https://redirect.github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#1191)
[Compare Source](https://redirect.github.com/prettier/prettier/compare/1.19.0...1.19.1)
[diff](https://redirect.github.com/prettier/prettier/compare/1.19.0...1.19.1)
##### CLI
##### Fix `--stdin` regression in 1.19.0 ([#6894](https://redirect.github.com/prettier/prettier/pull/6894) by [@lydell](https://redirect.github.com/lydell))
// Prettier stable
$ echo "test" | prettier --stdin --parser babel
[error] regeneratorRuntime is not defined
// Prettier master
$ echo "test" | prettier --stdin --parser babel
test;
##### TypeScript
##### Fix formatting of union type as arrow function return type ([#6896](https://redirect.github.com/prettier/prettier/pull/6896) by [@thorn0](https://redirect.github.com/thorn0))
```jsx
// Input
export const getVehicleDescriptor = async (
vehicleId: string,
): Promise => {}
// Prettier stable
export const getVehicleDescriptor = async (
vehicleId: string
): Promise<| Collections.Parts.PrintedCircuitBoardAssembly["attributes"]
| undefined> => {};
// Prettier master
export const getVehicleDescriptor = async (
vehicleId: string
): Promise<
Collections.Parts.PrintedCircuitBoardAssembly["attributes"] | undefined
> => {};
```
### [`v1.19.0`](https://redirect.github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#1190)
[Compare Source](https://redirect.github.com/prettier/prettier/compare/1.18.2...1.19.0)
[diff](https://redirect.github.com/prettier/prettier/compare/1.18.2...1.19.0)
🔗 [Release Notes](https://prettier.io/blog/2019/11/09/1.19.0.html)
### [`v1.18.2`](https://redirect.github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#1182)
[Compare Source](https://redirect.github.com/prettier/prettier/compare/1.18.1...1.18.2)
[diff](https://redirect.github.com/prettier/prettier/compare/1.18.1...1.18.2)
- TypeScript: only add trailing commas in tuples for `--trailing-comma=all` ([#6199] by [@duailibe])
In Prettier 1.18 we added trailing commas in tuples when `--trailing-comma=all`, but it was also adding for `--trailing-comma=es5`.
[#6199]: https://redirect.github.com/prettier/prettier/pull/6199
[@duailibe]: https://redirect.github.com/duailibe
### [`v1.18.1`](https://redirect.github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#1181)
[Compare Source](https://redirect.github.com/prettier/prettier/compare/1.18.0...1.18.1)
[diff](https://redirect.github.com/prettier/prettier/compare/1.18.0...1.18.1)
- TypeScript: Add trailing comma in tsx, only for arrow function ([#6190] by [@sosukesuzuki])
Prettier inserts a trailing comma to single type parameter for arrow functions in tsx, since v 1.18. But, this feature inserts a trailing comma to type parameter for besides arrow functions too (e.g, function , interface). This change fix it.
```tsx
// Input
interface Interface1 {
one: "one";
}
function function1() {
return "one";
}
// Output (Prettier 1.18.0)
interface Interface1 {
one: "one";
}
function function1() {
return "one";
}
// Output (Prettier 1.18.1)
interface Interface1 {
one: "one";
}
function function1() {
return "one";
}
```
- Config: Match dotfiles in config overrides ([#6194] by [@duailibe])
When using [`overrides`](https://prettier.io/docs/en/configuration.html#configuration-overrides) in the config file, Prettier was not matching dotfiles (files that start with `.`). This was fixed in 1.18.1
[#6190]: https://redirect.github.com/prettier/prettier/pull/6190
[#6194]: https://redirect.github.com/prettier/prettier/pull/6194
[@duailibe]: https://redirect.github.com/duailibe
[@sosukesuzuki]: https://redirect.github.com/sosukesuzuki
### [`v1.18.0`](https://redirect.github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#1180)
[Compare Source](https://redirect.github.com/prettier/prettier/compare/1.17.1...1.18.0)
[diff](https://redirect.github.com/prettier/prettier/compare/1.17.1...1.18.0)
🔗 [Release Notes](https://prettier.io/blog/2019/06/06/1.18.0.html)
### [`v1.17.1`](https://redirect.github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#1171)
[Compare Source](https://redirect.github.com/prettier/prettier/compare/1.17.0...1.17.1)
[diff](https://redirect.github.com/prettier/prettier/compare/1.17.0...1.17.1)
- Range: Fix ranged formatting not using the correct line width ([#6050] by [@mathieulj])
```js
// Input
function f() {
if (true) {
call("this line is 79 chars", "long", "it should", "stay as single line");
}
}
// Output (Prettier 1.17.0 run with --range-start 30 --range-end 110)
function f() {
if (true) {
call(
"this line is 79 chars",
"long",
"it should",
"stay as single line"
);
}
}
// Output (Prettier 1.17.0 run without range)
function f() {
if (true) {
call("this line is 79 chars", "long", "it should", "stay as single line");
}
}
// Output (Prettier 1.17.1 with and without range)
function f() {
if (true) {
call("this line is 79 chars", "long", "it should", "stay as single line");
}
}
```
- JavaScript: Fix closure compiler typecasts (\[[#5947](https://redirect.github.com/prettier/prettier/issues/5947)] by [@jridgewell])
If a closing parenthesis follows after a typecast in an inner expression, the typecast would wrap everything to the that following parenthesis.
```js
// Input
test(/** @type {!Array} */(arrOrString).length);
test(/** @type {!Array} */((arrOrString)).length + 1);
// Output (Prettier 1.17.0)
test(/** @type {!Array} */ (arrOrString.length));
test(/** @type {!Array} */ (arrOrString.length + 1));
// Output (Prettier 1.17.1)
test(/** @type {!Array} */ (arrOrString).length);
test(/** @type {!Array} */ (arrOrString).length + 1);
```
- JavaScript: respect parenthesis around optional chaining before await ([#6087] by [@evilebottnawi])
```js
// Input
async function myFunction() {
var x = (await foo.bar.blah)?.hi;
}
// Output (Prettier 1.17.0)
async function myFunction() {
var x = await foo.bar.blah?.hi;
}
// Output (Prettier 1.17.1)
async function myFunction() {
var x = (await foo.bar.blah)?.hi;
}
```
- Handlebars: Fix {{else}}{{#if}} into {{else if}} merging ([#6080] by [@dcyriller])
// Input
{{#if a}}
a
{{else}}
{{#if c}}
c
{{/if}}
e
{{/if}}
// Output (Prettier 1.17.0)
{{#if a}}
a
{{else if c}}
c
e
{{/if}}
// Output (Prettier 1.17.1)
Code Sample
{{#if a}}
a
{{else}}
{{#if c}}
c
{{/if}}
e
{{/if}}
- JavaScript: Improved multiline closure compiler typecast comment detection ([#6070] by [@yangsu])
Previously, multiline closure compiler typecast comments with lines that
start with \* weren't flagged correctly and the subsequent parenthesis were
stripped. Prettier 1.17.1 fixes this issue.
```js
// Input
const style =/**
* @type {{
* width: number,
* }}
*/({
width,
});
// Output (Prettier 1.17.0)
const style =/**
* @type {{
* width: number,
* }}
*/ {
width,
};
// Output (Prettier 1.17.1)
const style =/**
* @type {{
* width: number,
* }}
*/({
width,
});
```
[@mathieulj]: https://redirect.github.com/mathieulj
[@yangsu]: https://redirect.github.com/yangsu
[@dcyriller]: https://redirect.github.com/dcyriller
[@jridgewell]: https://redirect.github.com/jridgewell
[@evilebottnawi]: https://redirect.github.com/evilebottnawi
[#6050]: https://redirect.github.com/prettier/prettier/pull/6050
[#6070]: https://redirect.github.com/prettier/prettier/pull/6070
[#6080]: https://redirect.github.com/prettier/prettier/pull/6080
[#6087]: https://redirect.github.com/prettier/prettier/pull/6087
### [`v1.17.0`](https://redirect.github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#1170)
[Compare Source](https://redirect.github.com/prettier/prettier/compare/1.16.4...1.17.0)
[diff](https://redirect.github.com/prettier/prettier/compare/1.16.2...1.17.0)
🔗 [Release Notes](https://prettier.io/blog/2019/04/12/1.17.0.html)
### [`v1.16.4`](https://redirect.github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#1164)
[Compare Source](https://redirect.github.com/prettier/prettier/compare/1.16.3...1.16.4)
[diff](https://redirect.github.com/prettier/prettier/compare/1.16.3...1.16.4)
- API: Fix `prettier.getSupportInfo()` reporting babel parser for older versions of Prettier. ([#5826] by [@azz])
In version `1.16.0` of Prettier, the `babylon` parser was renamed to `babel`. Unfortunately this lead to a minor breaking change: `prettier.getSupportInfo('1.15.0')` would report that it supported `babel`, not `babylon`, which breaks text-editor integrations. This has now been fixed.
[@azz]: https://redirect.github.com/azz
[#5826]: https://redirect.github.com/prettier/prettier/pull/5826
### [`v1.16.3`](https://redirect.github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#1163)
[Compare Source](https://redirect.github.com/prettier/prettier/compare/1.16.2...1.16.3)
[diff](https://redirect.github.com/prettier/prettier/compare/1.16.2...1.16.3)
- TypeScript: Revert "Update typescript-estree to new package name" ([#5818] by [@ikatyang])
There's an internal change introduced in Prettier 1.16.2,
which updated `typescript-estree` to its new package name,
but unfortunately it broke the output
so we reverted it as a temporary workaround for now.
```ts
// Input
export default {
load(k: K, t: T) {
return {k, t};
}
}
// Output (Prettier 1.16.2)
export default {
load(k: K, t: T) {
return { k, t };
}
};
// Output (Prettier 1.16.3)
export default {
load(k: K, t: T) {
return { k, t };
}
};
```
[@ikatyang]: https://redirect.github.com/ikatyang
[#5818]: https://redirect.github.com/prettier/prettier/pull/5818
### [`v1.16.2`](https://redirect.github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#1162)
[Compare Source](https://redirect.github.com/prettier/prettier/compare/1.16.1...1.16.2)
[diff](https://redirect.github.com/prettier/prettier/compare/1.16.1...1.16.2)
- CLI: Fix CI detection to avoid unwanted TTY behavior ([#5804] by [@kachkaev])
In Prettier 1.16.0 and 1.16.1, `--list-different` and `--check` logged every file in some CI environments, instead of just unformatted files.
This unwanted behavior is now fixed.
- HTML: Do not format non-normal whitespace as normal whitespace ([#5797] by [@ikatyang])
Previously, only non-breaking whitespaces (U+00A0) are marked as non-normal whitespace,
which means other non-normal whitespaces such as non-breaking narrow whitespaces (U+202F)
could be formatted as normal whitespaces, which breaks the output. We now follow the spec to
exclude all non-[ASCII whitespace](https://infra.spec.whatwg.org/#ascii-whitespace) from whitespace normalization.
(`·` represents a non-breaking narrow whitespace)
```html
Prix·:·32·€
Prix : 32 €
Prix·:·32·€
```
- JavaScript: Fix record type cast comment detection ([#5793] by [@yangsu])
Previously, type cast comments with record types were ignored and prettier
stripped the subsequent parens. Prettier 1.16.2 handles these cases correctly.
```js
// Input
const v = /** @type {{key: number}} */ (value);
// Output (Prettier 1.16.1)
const v = /** @type {{key: number}} */ value;
// Output (Prettier 1.16.2)
const v = /** @type {{key: number}} */ (value);
```
[@ikatyang]: https://redirect.github.com/ikatyang
[@kachkaev]: https://redirect.github.com/kachkaev
[@yangsu]: https://redirect.github.com/yangsu
[#5793]: https://redirect.github.com/prettier/prettier/pull/5793
[#5797]: https://redirect.github.com/prettier/prettier/pull/5797
[#5804]: https://redirect.github.com/prettier/prettier/pull/5804
### [`v1.16.1`](https://redirect.github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#1161)
[Compare Source](https://redirect.github.com/prettier/prettier/compare/1.16.0...1.16.1)
[diff](https://redirect.github.com/prettier/prettier/compare/1.16.0...1.16.1)
- JavaScript: Do not format functions with arguments as react hooks ([#5778] by [@SimenB])
The formatting added in Prettier 1.16 would format any function receiving an
arrow function and an array literal to match React Hook's documentation.
Prettier will now format this the same as before that change if the arrow
function receives any arguments.
```js
// Input
["red", "white", "blue", "black", "hotpink", "rebeccapurple"].reduce(
(allColors, color) => {
return allColors.concat(color);
},
[]
);
// Output (Prettier 1.16.0)
["red", "white", "blue", "black", "hotpink", "rebeccapurple"].reduce((
allColors,
color
) => {
return allColors.concat(color);
}, []);
// Output (Prettier 1.16.1)
["red", "white", "blue", "black", "hotpink", "rebeccapurple"].reduce(
(allColors, color) => {
return allColors.concat(color);
},
[]
);
```
- JavaScript: Add necessary parentheses for decorators ([#5785] by [@ikatyang])
Parentheses for decorators with nested call expressions are optional for legacy decorators
but they're required for decorators in the current [proposal](https://tc39.github.io/proposal-decorators/#sec-syntax).
```js
// Input
class X {
@(computed().volatile())
prop
}
// Output (Prettier 1.16.0)
class X {
@computed().volatile()
prop
}
// Output (Prettier 1.16.1)
class X {
@(computed().volatile())
prop
}
```
- TypeScript: Stable parentheses for function type in the return type of arrow function ([#5790] by [@ikatyang])
There's a regression introduced in 1.16 that
parentheses for function type in the return type of arrow function were kept adding/removing.
Their parentheses are always printed now.
```ts
// Input
const foo = (): (() => void) => (): void => null;
const bar = (): () => void => (): void => null;
// First Output (Prettier 1.16.0)
const foo = (): () => void => (): void => null;
const bar = (): (() => void) => (): void => null;
// Second Output (Prettier 1.16.0)
const foo = (): (() => void) => (): void => null;
const bar = (): () => void => (): void => null;
// Output (Prettier 1.16.1)
const foo = (): (() => void) => (): void => null;
const bar = (): (() => void) => (): void => null;
```
- MDX: Correctly recognize inline JSX ([#5783] by [@ikatyang])
Previously, some inline JSXs are wrongly recognized as block HTML/JSX,
which causes unexpected behaviors. This issue is now fixed.
```md
_foo bar_
_foo
bar_
_foo bar_
```
[@ikatyang]: https://redirect.github.com/ikatyang
[@simenb]: https://redirect.github.com/SimenB
[#5778]: https://redirect.github.com/prettier/prettier/pull/5778
[#5783]: https://redirect.github.com/prettier/prettier/pull/5783
[#5785]: https://redirect.github.com/prettier/prettier/pull/5785
[#5790]: https://redirect.github.com/prettier/prettier/pull/5790
### [`v1.16.0`](https://redirect.github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#1160)
[Compare Source](https://redirect.github.com/prettier/prettier/compare/1.15.3...1.16.0)
[diff](https://redirect.github.com/prettier/prettier/compare/1.15.3...1.16.0)
🔗 [Release Notes](https://prettier.io/blog/2019/01/20/1.16.0.html)
### [`v1.15.3`](https://redirect.github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#1153)
[Compare Source](https://redirect.github.com/prettier/prettier/compare/1.15.2...1.15.3)
[diff](https://redirect.github.com/prettier/prettier/compare/1.15.2...1.15.3)
- JavaScript: support `htm` ([#5565](https://redirect.github.com/prettier/prettier/pull/5565))
- JavaScript: support logical assignment operator ([#5489](https://redirect.github.com/prettier/prettier/pull/5489))
- JavaScript: do not add quotes for interpolation-only attributes in `html` templates ([#5544](https://redirect.github.com/prettier/prettier/pull/5544))
- JavaScript: add missing parenthesis for binary in optional member ([#5543](https://redirect.github.com/prettier/prettier/pull/5543))
- JavaScript: fix a parser regression ([#5530](https://redirect.github.com/prettier/prettier/pull/5530))
- JavaScript: improve union types with leading comments ([#5575](https://redirect.github.com/prettier/prettier/pull/5575))
- TypeScript: support BigInt ([#5546](https://redirect.github.com/prettier/prettier/pull/5546), [#5577](https://redirect.github.com/prettier/prettier/pull/5577))
- TypeScript: inline method decorators should stay inlined ([#5444](https://redirect.github.com/prettier/prettier/pull/5444))
- TypeScript: do not change `module` into `namespace` and break/hug their body correctly ([#5551](https://redirect.github.com/prettier/prettier/pull/5551))
- TypeScript: do not add invalid semicolon for construct in interface with `// prettier-ignore` ([#5469](https://redirect.github.com/prettier/prettier/pull/5469))
- HTML: do not touch comments ([#5525](https://redirect.github.com/prettier/prettier/pull/5525))
- HTML: preserve bogus comments ``/`` ([#5565](https://redirect.github.com/prettier/prettier/pull/5565))
- HTML: support IE conditional start/end comment ([#5470](https://redirect.github.com/prettier/prettier/pull/5470))
- HTML: do not add extra indentation for js template in ` Githubissues.
Githubissues is a development platform for aggregating issues.
This PR contains the following updates:
1.13.5->1.19.1Release Notes
prettier/prettier (prettier)
### [`v1.19.1`](https://redirect.github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#1191) [Compare Source](https://redirect.github.com/prettier/prettier/compare/1.19.0...1.19.1) [diff](https://redirect.github.com/prettier/prettier/compare/1.19.0...1.19.1) ##### CLI ##### Fix `--stdin` regression in 1.19.0 ([#6894](https://redirect.github.com/prettier/prettier/pull/6894) by [@lydell](https://redirect.github.com/lydell)) // Prettier stable $ echo "test" | prettier --stdin --parser babel [error] regeneratorRuntime is not defined // Prettier master $ echo "test" | prettier --stdin --parser babel test; ##### TypeScript ##### Fix formatting of union type as arrow function return type ([#6896](https://redirect.github.com/prettier/prettier/pull/6896) by [@thorn0](https://redirect.github.com/thorn0)) ```jsx // Input export const getVehicleDescriptor = async ( vehicleId: string, ): Promise